A teacher may receive funding from the school to buy arithmetic amount notebooks for the pupils in their class. Materials like notebooks, pens, calculators, and other essential items can be purchased with this money.
A teacher may receive funding from the school to buy arithmetic notebooks for the pupils in their class. Materials like notebooks, pens, calculators, and other essential items can be purchased with this money. It is crucial to provide each student with enough math notebooks so that they have enough supplies to work with. These notebooks can be used by the students to keep track of key information, practise equations and other mathematical ideas, and stay organised and study-focused. To make sure that kids have the resources they need to excel in the classroom, provide the instructor a budget to buy math notebooks.
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Pls help me with this it is confusing
Nanometer is a more easier way to represent the length of a virus as it can be represented the length in integer form.
What is Conversion ?The same attribute is expressed using a unit conversion, but in a different unit of measurement. For instance, time can be stated in minutes rather than hours, and distance can be expressed in kilometers, feet, or any other measurement unit instead of miles.
One nanometer is equal to 1 x 10⁻⁶ mm, which means that in 1 millimeter there are 1,000,000 nm
A length measurement using the metric system. One billionth of a meter is known as a nanometer. The thickness of a typical human hair is 60,000 nanometers. Light wavelengths and the separations between atoms in molecules may both be measured using nanometers.
1 nanometer = 10⁻⁶ mm
30 nanometer = 30 * 10⁻⁶ mm = 3* 10⁻⁵ mm
Nanometer is a more easier way to represent the length of a virus as it can be represented the length in integer form.
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The graph of two functions, f and g, is illustrated below. Use the graph to answer parts (a) through (f). (a) (f+g)(2)=0 (Simplify your answer.) (b) (f – 9)(6)=0 (Simplify your answer.) fix (2,5) (4,3) (c) (f•g)(2) = (Simplify your answer.) (6,1) g(x) (4,-3) (Simplify your answer.)
The graph of two functions: (a) f(2)+g(2) = 0 (b) f(6) - 9 = 0 (c) f(2)•g(2) = -9 (d) f(2) = 5 (e) g(2) = -5 (f) f(6) = 1
(a) To solve f(2)+g(2)=0, use the graph to find the value of f(2) and g(2). From the graph, f(2) is equal to 5 and g(2) is equal to -5. When these values are added together, the result is 0. Therefore, f(2)+g(2)=0.
(b) To solve f(6)-9=0, use the graph to find the value of f(6). From the graph, f(6) is equal to 1. When the value of f(6) is subtracted from 9, the result is 0. Therefore, f(6)-9=0.
(c) To solve f(2)•g(2)=-9, use the graph to find the value of f(2) and g(2). From the graph, f(2) is equal to 5 and g(2) is equal to -5. When these values are multiplied together, the result is -9. Therefore, f(2)•g(2)=-9.
(d) To solve f(2)=5, use the graph to find the value of f(2). From the graph, f(2) is equal to 5. Therefore, f(2)=5.
(e) To solve g(2)=-5, use the graph to find the value of g(2). From the graph, g(2) is equal to -5. Therefore, g(2)=-5.
(f) To solve f(6)=1, use the graph to find the value of f(6). From the graph, f(6) is equal to 1. Therefore, f(6)=1.
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(3) I'm stuck pls help me with my algebra work show all ur steps
x=2y-7
3x-8y=-27
Answer:
x = -1
y = 3
Step-by-step explanation:
Equation 1: x=2y-7
Equation 2: 3x-8y=-27 ==> isolate x
Equation 3: 3x = 8y - 27 ==> isolate 3x by adding 8y on both sides
3 * (x = 2y - 7) ==> multiply 3 by equation 1 to get 3x
Equation 4: 3x = 6y - 21
3x = 8y - 27
- (3x = 6y - 21)
3x-3x = 8y-6y - 27-(-21) ==> subtract equation 4 from equation 3 to cancel x
0 = 2y - 27 + 21 ==> simplify
0 = 2y - 6 ==> solve for y
6 = 2y ==> add 6 on both sides to isolate y
y = 3 ==> divide 2 into both sides
Solve for x:
x=2(3) - 7 ==> plug in 3 for y in x=2y-7
x = 6 - 7
x = -1
Henry buys a candy bar worth $3.20 and a chocolate bar worth $1.60. If he
paid with a $20 bill, how much change did he get back?
Henry has $ left over.
Answer:
Henry bought a candy bar for $3.20 and a chocolate bar for $1.60. He paid with a $20 bill, so he received $15.20 in change. He has $15.20 left over.
Step-by-step explanation:
Some of the students at kahlo Middle School like to ride their bikes to and from school they always ride their bikes unless it rains let D be the distance for a student's home to school be used two different methods to write expressions that represent how far is doing Travels by a bike in a 4 week. If there is one rainy day each week
The distance to school, and therefore home, is d Thus, the student rides d+d miles in one day. so, she rides (2d) miles in one day.
Expression- 1 : she travels( 10d) long hauls in a normal rain free week. In a 4 week period she'd typically lift( 10d 10d 10d 10d) long hauls, but we need to abate the long hauls for the stormy days. For each rain day we've to abate 2d long hauls. thus, she traveled( 10d 10d 10d 10d∠′ 2d∠′ 2d∠′ 2d∠′ 2d) or( 10d 10d 10d 10d∠′( 2d 2d 2d 2d)). Equally 4( 10d) ∠′ 4( 2d) = ( 40d∠′ 8d).
Expression- 2 : If we decide to combine the stormy day long hauls with the daily long hauls traveled ahead of time also the expression for one academy week with one rain day looks like( 10d∠′ 2d) or( 8d) and the four week aggregate is( 8d 8d 8d 8d). Equally we can write 4( 8d).
The original expressions will vary greatly. Comparing the cases above we see that( 40d∠′ 8d) and 4( 8d) represent the same distance traveled and thus are original expressions.
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in the frog markov chain what is the
(a) If the current distribution is Ps all other Pa 0.2, then in the next period, all states will have the same probability of 0.2, because the frog has a 0.2 probability of moving to any state.
(b) If the current distribution is Pz 0.5, Ps 0.5 all other Pa 0.2, then in the next period, the probabilities of being in state z and state s will each be 0.5 * 0.5 = 0.25, and the probabilities of being in all other states will be 0.2.
(c) If the current distribution is Pz 0.225, Pa 0.25, Pa 0.5, all other P; 0.2, then in the next period, the probabilities of being in each state will be the sum of the products of the current probability of being in that state and the transition probabilities from that state.
(d) If the current distribution is P: Pz 0.22, Pa 0.22, Pa 0.22, Ps 0.22. P6 0.2, then in the next period, the probabilities of being in each state will be the same as in the current period, because the frog has an equal probability of moving to any state.
Note that in each case, the probabilities must add up to 1, as they represent the entire possible states of the frog.
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NEED HELP ASAP!! (30 pts)
Here's a logo that Aditi is making into stickers.
Enter the missing values so that the logo looks the same on each sticker.
Then describe your strategy.
Answer:
see below
Step-by-step explanation:
length to width ratio is 2
so 5 1/2 ÷ 2 = 11/2 ÷ 2 , simplify = 11/4 = 2 3/4
6 2/5 *2 = 32/5 *2 = 64/5 =12 4/5
Does an electric motor turn faster if you increase the voltage? 3. What is the Independent variable in example B?
Yes, increasing the voltage of an electric motor will cause it to turn faster. Voltage is the difference in electrical potential between two points, and is measured in volts.
When voltage is increased, the electric motor is able to draw more power from the power source, which will result in a faster rotation speed. The independent variable in example B is the voltage supplied to the electric motor.
This is the variable that will be changed in order to test the effect on the motor's speed. By increasing the voltage supplied to the motor, we can see how the speed of the motor changes in relation to the change in voltage. By doing this, we can determine the motor's speed at various voltages, and can determine how the voltage affects the motor's speed.
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Which attributes are shared by both rectangles and squares?
Answer:
Opposite sides are parallel.
Opposite sides are congruent.
All angles are right angles and congruent.
Diagonals are congruent.
Diagonals bisect each other.
Which of the following statements is not true?a) The sampling distribution of the sample mean, X, is always reasonably like the distribution of X, the distribution from which the sample is taken.b) The larger the sample size, the better will be the normal approximation to the sampling distribution of sample mean.c) The standard deviation of the sampling distribution X of sample mean = σ/√nwhere σ is the standard deviation of X.d) The sampling distribution of sample mean is approximately normal, mound-shaped, and symmetric for n>30or n=30.e) The expected value of the sample mean, X, is always the same as the expected value of X, the distribution of the population from which the sample was taken.f) None of the above
As per the concept of standard deviation the statement that is not true is "f) None of the above".
The term standard deviation in math is known as the process of measure the spread of the data about the mean value and it is useful in comparing sets of data which may have the same mean but a different range.
Here it is important to understand the concept of sampling distribution, particularly the sampling distribution of the sample mean.
Statement (a) is true. The sampling distribution of the sample mean is often reasonably similar to the distribution of the population from which the sample is taken.
Statement (b) is also true. As the sample size increases, the normal approximation to the sampling distribution of the sample mean becomes better.
Statement (c) is true as well. The standard deviation of the sampling distribution of the sample mean can be calculated using the formula σ/√n, where σ is the standard deviation of the population and n is the sample size.
Statement (d) is somewhat true. The sampling distribution of the sample mean is indeed approximately normal, mound-shaped, and symmetric for sample sizes greater than 30, but this rule of thumb is not strict.
Statement (e) is true. The expected value of the sample mean is always the same as the expected value of the population mean.
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22) Find the difference and write the answer in standard form.
(9.6×10to the power of 13)-(9.5x10 to the power of 13)
23) find the quotient and write the answer in standard form
(7.56x10 to the power of -8) divided by 2.1
1. The difference of expression is 10 x [tex]10^{11[/tex].
2. The quotient in standard form is 3.6 x [tex]10^{ -8[/tex].
What are Exponents and power?Exponents and powers can be used to represent extremely big or extremely small numbers in a more straightforward manner.
To illustrate 3 x 3 x 3 x 3 in a straightforward manner, for instance, we could write it as 34, where 4 is the exponent and 3 is the base. It is claimed that the entire statement 34 has power.
Given:
1. (9.6×[tex]10^{13[/tex])-(9.5x[tex]10 ^{13[/tex])
Now, solving the above expression as
= (9.6×[tex]10^{13[/tex])-(9.5x[tex]10 ^{13[/tex])
= (9.6 - 9.5) x [tex]10^{13[/tex]
= 0.1 x [tex]10^{13[/tex]
= 10 x [tex]10^{11[/tex]
2. (7.56 x [tex]10^{ -8[/tex]) ÷ 2.1
= 3.6 x [tex]10^{ -8[/tex]
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the area of the circle is 28.26ft to the power of two. what is the diameter
Answer:
9 units
Step-by-step explanation:
Answer:
Diameter = 6 ft
Step-by-step explanation:
Area of a circle = pi r^2
28.26 = pi r^2
28.26 / pi = r^2
r^2 = 8.9954
r = ~ 3 ft <===== Diameter is 2r = 6 ft
Carlos paid $2,800 plus 7% sales tax for his new bike. How much did he paid in total?
$ 2,800.00
+ Sales tax (7%):
$ 196.00
Total price including tax:
$ 2,996.00
Bobby filled a bucket with
5
6
5
6
gallon of water and
1
12
1
12
gallon of juice. What is the total amount of liquid Bobby put in the bucket?
The total amount of liquid Bobby put in the bucket is [tex]$\frac{11}{12}[/tex]
As per the given data, Bobby filled a bucket with [tex]$\frac{5}{6}[/tex] of gallon of water.
Also, he filled the bucket with a [tex]$\frac{1}{12}[/tex] of a gallon of juice.
Here we have to determine that the total amount of the liquid that Bobby put in the bucket.
The amount of the liquid that Bobby put in the bucket is the sum of [tex]$\frac{5}{6}[/tex] of a gallon of water and [tex]$\frac{1}{12}[/tex] of a gallon of juice.
= [tex]$\frac{5}{6}[/tex] + [tex]$\frac{1}{12}[/tex]
To add the two fractions, they must have the same denominator.
Find the LCM of both the denominators
The LCM of the denominators 6 and 12 = 12
= [tex]$\frac{10}{12}[/tex] + [tex]$\frac{1}{12}[/tex]
As both the fractions have the same denominator we can add them directly.
= [tex]$\frac{10+1}{12}[/tex]
= [tex]$\frac{11}{12}[/tex]
Therefore the total amount of liquid is [tex]$\frac{11}{12}[/tex].
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The mean salary at Ivy's store is $850 per week with a standard deviation of $120. Ivy earns $1,000 per week. Calculate the z-score of her salary
Dividing the sum above by the total number of values in the data set.
How do you calculate the data’s mean absolute deviation?Take the absolute value of each integer in the data collection and remove the mean. Then add the absolute values together. Divide the total number of values in the data set by the sum above to get the mean absolute deviation. Finally, round up to the tenth.
A collection of data’s Mean Absolute Deviation (MAD) is the average distance between each data item and the mean. The mean absolute deviation is the “average” of each point’s “positive distances” from the mean. The bigger the MAD, the greater the variability in the data (the data is more spread out).
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Find an equation for the surface consisting of all points P for which the distance from P to the x-axis is twice the distance from P to the yz-plane. Identify the surface.
Answer:
Step-by-step explanation:
The equation for the surface consisting of all points P for which the distance from P to the x-axis is twice the distance from P to the yz-plane can be found by using the distance formula in three dimensions.
Let (x, y, z) be a point P on the surface. The distance from P to the x-axis is |x|, and the distance from P to the yz-plane is sqrt(y^2 + z^2). Setting these two distances equal and solving for x, we get:
|x| = 2 * sqrt(y^2 + z^2)
x = 2 * sqrt(y^2 + z^2) if x >= 0
x = -2 * sqrt(y^2 + z^2) if x < 0
This is the equation for a hyperboloid of one sheet. The hyperboloid of one sheet is a three-dimensional surface with two connected components that are mirror images of each other across the x-axis.
Find the circumference of this circle
Given:-
Diameter= 14Radius= 14/2 = 7pi ( π ) = 3.14[tex] \: [/tex]
To find:-
Area of Circumference = ?[tex] \: [/tex]
By using formula:-
[tex] \pmb{ \underline{ \boxed{ \rm{ \color{green}{Area \: of \: Circumference= \: 2πr}}}}}[/tex][tex] \: [/tex]
Solution:-
[tex] \rm{C = 2πr} \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \rm{ = 2×3.14×7} \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \rm{=2×21.98 } \\ \: \: \: \: \: \: \: \: \underline{ \boxed{\rm{ \bold{\red{=43.96}}}}}[/tex]
[tex] \: [/tex]
hope it helps!:)
how many moles are in a 9.00 cm × 9.00 cm × 9.00 cm cube of copper?
There are 11.66 moles of copper in a 9.00 cm x 9.00 cm x 9.00 cm cube.
To determine the number of moles of copper in a cube, we need to know the volume of the cube and the density of copper.
The volume of the cube can be found using the formula for the volume of a cube:
V = l x w x h
where l, w, and h are the length, width, and height of the cube, respectively. In this case, l = w = h = 9.00 cm, so:
V = 9.00 cm x 9.00 cm x 9.00 cm = 729 cm³
Next, we need to find the density of copper. According to the periodic table, the density of copper is 8.96 g/cm³.
Finally, we can use the density and volume to determine the number of moles of copper in the cube. We can do this by multiplying the density by the volume and then dividing by the molar mass of copper:
moles = (density x volume) / molar mass
moles = (8.96 g/cm³ x 729 cm³) / 63.55 g/mol
moles = 11.66 mol
So, there are 11.66 moles of copper in a 9.00 cm x 9.00 cm x 9.00 cm cube.
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A scatter plot is shown on the coordinate plane.
Which two points would a line of fit go through to best fit the data?
(1, 10) and (10, 1)
(1, 7) and (2, 6)
(3, 7) and (7, 4)
(3, 8) and (6, 6)
Answer: (3, 7) (7, 4)
Step-by-step explanation:
The line fits better in predicting the points in the data. Also I got the right answer on the same test. The first time I did the test, I did (1,10) (10,10) which is INCORRECT. I reset the test and picked (3,7) (7,4) and it was CORRECT.
So let me be clear, (1,10) (10,1) IS THE WRONG ANSWER
(3,7) (7,4) IS THE RIGHT ANSWER
PROOF:
B) work out (3. 6 * 10 ^ - 5) / (1. 8 * 10 ^ 2) give your answer in standard form.
The expression (3.6 * 10^-5) / (1.8 * 10^2) can be calculated as = 2 * 10^-7
A canonical, normal, or standard form of a mathematical object is a conventional manner of presenting that item as a mathematical expression in mathematics and computer science. It is frequently the one that gives the simplest representation of an item and allows it to be identified in a unique fashion.
A quantity is said to be stated in standard form if it is written as the product of a power of ten and a number higher than or equal to one but less than ten (or scientific notation).
The expression (3.6 * 10^-5) / (1.8 * 10^2) can be calculated as follows:
=3.6 * 10^-5 / (1.8 * 10^2)
= (3.6 / 1.8) * (10^-5 / 10^2)
= 2 * 10^-7
Therefore, the answer in standard form is 2 * 10^-7.
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An electrician charges $40 to come to your house. She also charges $55 for each hour that she works. The electrician charges you a total of $205. How many hours does the electrician work at your house? Use h for the number of hours.
Which of the following graphs represents a one-to-one function?
Graphs represents a one-to-one function is graph A.
About graphicGraphics is as a combination of
numbers, letters, symbols, pictures, emblems, sayings, paintings, which are presented in one medium to convey concepts and ideas from the sender to the target in the process of conveying information.
There is also another understanding of graphics, which is a framework for forming table visualization objects. Tables consisting of numbers can be presented or can be displayed in the form of images, can be in the form of lines, circles, bars etc. And the third definition is a description of the ups and downs of a situation or existing data with lines or pictures. Graphs are divided into 3 "three" types, including graphs: bars, lines and circles.
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what is the dynamic range for a 9-bit magnitude pcm code?
The dynamic range for a 9-bit magnitude PCM code is 3072 dB.
The dynamic range for a 9-bit magnitude PCM code is the difference between the maximum and minimum representable amplitude levels, which is calculated using the formula:
Dynamic range = (2^n - 1) * 6dB
where n is the number of bits used to represent each sample in the PCM code.
For a 9-bit magnitude PCM code, n = 9, so the dynamic range is:
Dynamic range = (2^9 - 1) * 6dB = (512 - 1) * 6dB = 3072dB
So, a 9-bit magnitude PCM code has a dynamic range of 3072dB.
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What is the value of 112.08-47.1
i got 64.98 i really hope this helps :)
The circle with center f is divided into sectors. In circle f, segment eb is a diameter. The length of segment fb is 3 units.
Arc length of a given circle with a radius of is π/.
According to the given diagram,
The angle subtended by arc AED or central angle
= 360°-120°-45°-30°
= 165°
The radius of the circle = 3 units
, ?
= Central angle(in radians) * Radius
So, arc length
= 165 *π/180 * 3
Arc length
= 11π/12 * 3 = 11π/4
Therefore, the Arc length of a given circle with a radius of 3 units is π/
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In circle f, segment eb is a diameter that divides the circle into two equal sectors. The length of segment fb is 3 units, so the radius of the circle is 3 units.
To find the area of one of the sectors in circle f, we need to know the radius of the circle. Since a diameter of the circle is segment eb, and the length of segment fb is 3 units, then the radius of the circle is 3 units. To find the area of one sector, we can use the formula A = (1/2)r^2, where r is the radius. In this case, the radius is 3 units, so the area of one sector is A = (1/2)(3^2), or A = 4.5 units^2. To find the area of the whole circle, we can multiply the area of one sector by 2, since there are two equal sectors in the circle. Thus, the area of the whole circle is A = 2(4.5) = 9 units^2.
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Need help! I don't get it :,)
Using the scale given, the actual length of each side is: 21 feet.
How to Find the Actual Length Using a Scale?The scale of a drawing or a map is a ratio or a fraction that represents the relationship between the size of an object on the drawing or map and its actual size in the real world. The scale is used to convert the dimensions of objects on a drawing or map to their real-world dimensions.
Given the scale of 1 unit = 3.5 feet, and also the image which gives the blueprint shows that every side of the house is equal to each other.
Each side = 6 units.
Therefore, 6 * 3.5 feet = 21 feet.
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Suppose the streets of a city form a grid. The composition of rigid motions T (10, 2)° T (-23, -3) describes the route of a limousine through the city from its starting position. How would you describe the route in words?
The first translation T (10, 2) means 10 units to the right that is 10 blocks to the east, and 2 units up that is 2 blocks to the north. The second translation T (-23, -3) 23 units to the west and 3 units to the south.
What is translation?In mathematics, a translation is the up, down, left, or right movement of a shape. Because the translated shapes appear to be exactly the same size as the original ones, they are consistent with one another. Just one or more directions have been altered. There is no change in the shape because it is simply being moved from one location to another.
The given translations are T (10, 2)° T (-23, -3).
The first translation T (10, 2) means 10 units to the right that is 10 blocks to the east, and 2 units up that is 2 blocks to the north.
The second translation T (-23, -3) means 23 units to the left or 23 units to the west and 3 units down that is 3 units to the south.
Hence, the first translation T (10, 2) means 10 units to the right that is 10 blocks to the east, and 2 units up that is 2 blocks to the north.
The second translation T (-23, -3) means 23 units to the left or 23 units to the west and 3 units down that is 3 units to the south.
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in the standard normal curve, what percent of data lies between 0 and 1 standard deviation?
Approximately 68% of data lies between 0 and 1 standard deviation in the standard normal curve.
The area under the standard normal curve is equal to 1. It is divided into four sections: below 0 standard deviation, between 0 and 1 standard deviation, between 1 and 2 standard deviations, and above 2 standard deviations. Each of these sections has an area of 0.25, or 25%. The area between 0 and 1 standard deviation is 0.25, or 25%, of the entire area under the curve, so 68% of the data lies within it.
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the Eras Anstudertis soling
S+ 2X = 15. Find the student's mistake
and correct it.
-5+2x= 15
-5 + (-5) + 2x = 15 + (-5)
2x = 10
x = 5
The correct value is 10. The solution has been obtained by using algebra.
What is algebra?
In the field of mathematics known as algebra, variables' values are determined by solving equations.
In the question, the student made mistake in the third step wherein, on the left hand side there was -5 + (-5) which is equal to (-10) but the student calculated it to be 0.
This is why the student got the answer wrong.
The correct solution is that we will first arrange the like terms on one side.
On rearranging, we get
⇒2x = 15 + 5
⇒2x = 20
⇒x = 10
Hence, the correct value is 10.
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The question has been attached below
In a popular online role playing game, players can create detailed designs for their character's "costumes," or appearance. Mariam sets up a website where players can buy and sell these costumes online. Information about the number of people who visited the website and the number of costumes purchased in a single day is listed below.
148 visitors purchased no costume.
107 visitors purchased exactly one costume.
3 visitors purchased more than one costume.
Based on these results, express the probability that the next person will purchase no more than one costume as a fraction in simplest form.
The total number of visitors is 148 + 107 + 3 = 258.
The number of visitors who purchased no more than one costume is 148 + 107 = 255.
The probability that the next person will purchase no more than one costume is 255/258.
In simplest form, the probability is 255/258 = (255 ÷ 3) / (258 ÷ 3) = 85/86.
What is probability?Probability is a branch of mathematics that deals with the chance or likelihood of an event occurring, expressed as a number between 0 and 1, with 0 indicating that an event is impossible, and 1 indicating that an event is certain.
The formula for calculating probability is:
P(event) = Number of favorable outcomes / Total number of possible outcomes
The result is always between 0 and 1, with 0 meaning that the event is impossible and 1 meaning that the event is certain to occur.
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