If p(a) =. 35 and p(b) =. 45 and p(a and b) =. 25, then p(b|a) is

Answers

Answer 1

Answer:

p(b|a) =5/7

Step-by-step explanation:

hello :

note : p(b|a) = p(a and b)/p(a)

p(b|a) = 25/35 =5/7

Answer 2

The value of the probability of the event B given A, symbolically P(B|A), when it is known that P(A) = 0.35, P(B) = 0.45 and P(A∩ B) =0.25 is found as: P(B|A) = 5/7

What is chain rule in probability?

For two events A and B, by chain rule, we have:

[tex]P(A \cap B) = P(B)P(A|B) = P(A)P(B|A)[/tex]

where P(A|B) is probability of occurrence of A given that B already occurred.

We're given that:

P(A) = 0.35P(B) = 0.45P(A and B) = P(A ∩ B) = 0.25P(B|A) = to be known.

Using the chain rule of probability, we get:

[tex]P(A \cap B) = P(A)P(B|A) \\\\P(B|A) = \dfrac{P(A \cap B)}{P(A)} = \dfrac{0.25}{0.35} = \dfrac{5}{7}[/tex]

Thus, the value of the probability of the event B given A, symbolically P(B|A), when it is known that P(A) = 0.35, P(B) = 0.45 and P(A∩ B) =0.25 is found as: P(B|A) = 5/7

Learn more about chain rule here:

https://brainly.com/question/21081988

#SPJ4


Related Questions

7. What is the length of SW?

Answers

Answer:

SW = 130

Step-by-step explanation:

[tex]2(2x+5)=5x-20[/tex]

This is what the equation should be because this is a rectangle.

[tex]4x+10=5x-20[/tex]

Once you finish simplifying, move the numbers and variables over to get this.

[tex]x=30[/tex]

Then do multiplication and addition to get 130.

Question 3 (1 point)
Which is the explicit rule for the geometric sequence?
10, -30, 90, -270, ...

Answers

Answer:

The rule for this question should be an=10*(-3)^(n-1)

Step-by-step explanation:

Because 10, -30, 90, and -270 divide (for example -30/10, 90/-30 and -270/90 which means the ratio equals -3) To find the ratio, you must divide by its previous term.

Then, the equation for the ratio would be a1 (first term in the sequence) multiplied by the ratio, then to the power of the number subtracted by 1. an=a1*r^(n-1) This is the formula to find the nth term of a geometric sequence.

Hope this helped!

Find the surface area of the figure. Round to the nearest tenth if possible.​

Answers

Area of square base:
13 x 13 = 169
Area of triangular sides:
B x H/2
13 x 16/2 = 104
104 x 4 = because there are 4 triangular sides of the figure = 416
416 + 169 = 585in^2
590in^2

What is 3/20 as a decimal?

Answers

Answer: 0.15

Step-by-step explanation:

Answer:

0.15

Step-by-step explanation:

3/20=15% so that means its 0.15

which of the following is not a pythagorean triple
(5,12,13)
(8, 15 17)
(5, 8, 9)
(6, 8, 10)

Answers

Answer:

C. (5, 8, 9)

Step-by-step explanation:

Put the triples into the Pythagorean Theorem and see if they come out true.

a² + b² = c²

5² + 12² = 13²

25 + 144 = 169

169 = 169

5, 12, and 13 are a Pythagorean Triple.

a² + b² + c²

8² + 15² = 17²

64 + 225 = 289

289 = 289

8, 15, and 17 are a Pythagorean Triple.

a² + b² = c²

5² + 8² = 9²

25 + 64 = 81

89 ≠ 81

5, 8, and 9 are NOT a Pythagorean Triple.

a² + b² = c²

6² + 8² = 10²

36 + 64 = 100

100 = 100

6, 8, and 10 are a Pythagorean Triple.

7. An arched window has dimensions as
shown at the right. Consider the top of the
window to be a semicircle. How much plastic
covering is needed to cover the window,
following the outline of the window?

Answers

The amount of plastic covering needed to cover the window is 25.71.

How much plastic covering is needed?

The window consists of a semi circle and a rectangle. The circumference and the perimeter of the semi circle and a rectangle has to be determined.

Circumference of the semi circle = 1/2πd + d

Where:

π = 3.14

d = diameter = 3

1/2 x 3.14 x 3 + 3 = 7.71

Perimeter of the rectangle = 2(length + width)

2x (6 + 3) = 18

18 + 7.71 = 25.71

Please find attached an image of the window. To learn more about the perimeter of a rectangle, please check: https://brainly.com/question/3205029

What is the volume of a rectangular prism with a length of 7 centimeters, a width of 3 centimeters, and a height of 2 centimeters?
Enter your answer in the box.

V = cm³

Answers

Answer:

42cm³

Step-by-step explanation:

7*2*3=42

7*2=14

14*3=42

42

Help please…………………….

Answers

Answer:

get better maybe

Step-by-step explanation:

just pay attention in class

Help me plssss someone I've been stuck on this question for a while now ;(

Answers

Answer:

4000 meters

Step-by-step explanation:

Shortest run was 5 laps (2000 meters), and longest was 15 (6,000 meters)

1 of 39 men is chosen at random. 27 men passed the test. 12 men failed. What is the probability that the man failed his test​

Answers

Answer:

30.7%, 0.3, or 4/13

Step-by-step explanation:

The correct procedure for this problem is:

The number of men that passed the test and the number of men should be located as the numerator and denominator of the fractional number.12/39 is our fraction, which we can reduce to 4/13We can change it to a percent and a decimal, which would be 30.7% and 0.3.

Pls help ill give 15 brainliest and 5 starts question is down below

Answers

Answer:

Area of right angle triangle is axb/2

3x4/2 = 6 sq. Cm

Area of parallelogram = bxh

20x21.5 = 430 in2

Answer:

Area of the triangle: 6 cm
Area of the parallelogram: 430 in²

Step-by-step explanation:

Area of a triangle formula is base * height * 1/2, in this case 4 * 3 * 1/2, which equals 6.

Area of a parallelogram formula is base * height, in this case 21.5 * 20 which equals 430.

Solve for X. Leave your answer in the simplest radical form.
Image down below!
Someone please help me with this, I’ll give you brainlist and points!

Answers

Answer is 2 root 5

I used the Pythagorean theorem starting with the first triangle and using that answer to figure out the second, revealing x.

Answer:

√20 which can be written as 2√5

solve pls brainliest

Answers

Answer: 200 students gave their speeches.

Explanation;

240 ÷ 6 = 40

40 x 5 = 200


Two friends share a protein bar which weighs 7 ounces. Each friend eats the same amount of the protein bar. Between which two
whole numbers does the number of ounces of the protein bar that each friend eats lie?
HELP

Answers

Sorry but no speek English

Answer:

3 and 4

Step-by-step explanation:

3.5 ounces is 7/2 so if they eat the same amount they would both eat 3.5 ounces.

What is the value of w?
w
36°

Answers

Answer: you literally said it yourself. its 36°

Step-by-step explanation:

It’s 36° due to the vertical angles theorem

Given the function h of x equals 3 times the square root of x, which statement is true about h(x)?

The function is decreasing on the interval (–∞, 0).
The function is increasing on the interval (–∞, 0).
The function is decreasing on the interval (0, ∞).
The function is

Answers

The true statement about h(x) is: The function is increasing on the interval [0, ∞).

Linear Function

A linear function can be represented by a line. The standard form for this equation is: ax+b , for example, y=2x+7. Where:

a= the slope.If:

             a> 0 , the function is increasing;

             a< 0 , the function is decreasing;

b=the constant term that represents the y-intercept.

Domain and Range

The domain of a function is the set of input values for which the function is real and defined. In other words, when you define the domain, you are indicating for which values x the function is real and defined.

While the domain is related to the values ​​of x, the range is related to the possible values ​​of y that the function can have.

You should convert the text of the question into a math expression.

[tex]h(x)=3*\sqrt{x}[/tex]

Like the coefficient a is greater than zero (a>0), the function is increasing.

The equation has a square root, so, the values of x can not present negative values. Therefore, x≥0. Consequently, the values of y (range) for this function will be greater than or equal to zero (y≥0). See the attached image.

The range is:

[tex]{Solution:}\:&\:f\left(x\right)\ge \:0\:\\Notation:}&\:[0,\:\infty \:)\end{bmatrix}[/tex]

Learn more about the range and the domain here:

brainly.com/question/10197594

Raegan mows two lawns, The first lawn is 5 meters long and 4 meters wide. The area of the second lawn is 2 times as big but has the same width as the first, what is the length of the second lawn

Answers

By solving a simple linear equation, we conclude that the length of the second lawn is 10 meters.

What is the length of the second lawn?

We know that one of the lawns is 5 meters long and 4 meters wide, then its area is:

A = 4m*5m = 20m^2

The other is two times as big, so its area is 40m^2 and has the same width as the first one (4 meters), so if we define the length as L we can write:

40m^2 = 4m*L

Solving for L we get:

(40 m^2)/4m = L = 10m

The length is 10 meters.

If you want to learn more about area, you can read:

https://brainly.com/question/24487155

Please help math.......100pts

Answers

Answer:

8000

Step-by-step explanation:

Solve as requested in the question, round each number:

3008 ≈ 30005243 ≈ 5000

The sum is:

3000 + 5000 = 8000

Answer:

8000

Step-by-step explanation:

3008 rounded to nearest thousand: 30005243 rounded to nearest thousand: 5000

⇒ 3008 + 5243 ≈ 3000 + 5000

⇒ 3000 + 5000 = 8000

Sonia uses a 20% off coupon when she order from Uber eats original price of the order is $50 how much money does Sonya save

Answers

Answer:

she saves $40

Step-by-step explanation:

first of all, you find 20% of $50, that is,

(20/100) * $50

then you get: $10

next step is to subtract this answer from the $50, that is: $50 - $10 = $40

have a great day!!

We get the amount of price removed as a result of free coupon as below:

[tex] \frac{20}{100 } \times 50 = \frac{1000}{100} = 10 \\ coupon = 10dollars[/tex]

Therefore, Sonya saved $10

Multiplying Polynomials

Answers

Let's see

Area

[tex]\\ \rm\rightarrowtail \dfrac{1}{2}\times Base\times Height [/tex]

[tex]\\ \rm\rightarrowtail \dfrac{1}{2}(6xy^5)(4x^2y)[/tex]

[tex]\\ \rm\rightarrowtail 3xy^5(4x^2y)[/tex]

[tex]\\ \rm\rightarrowtail 12x^3y^6[/tex]

[tex]\text{Area of triangle} = \dfrac 12 \times \text{Height} \times \text{Base} \\\\~~~~~~~~~~~~~~~~~~~~~~=\dfrac 12 \cdot 6xy^5\cdot 4x^2y\\\\~~~~~~~~~~~~~~~~~~~~~~=12x^3y^6 ~ \text{units}^2[/tex]

Anyone please help me

Answers

Answer:

3

Step-by-step explanation:

these are 2 similar triangles (all 3 pairs of corresponding angles are equal in their pair, and the lengths of corresponding sides have the same ratio in every pair of corresponding sides and other lengths).

and they are also right-angled triangles.

so, what else do we know about them ?

PQ = 18

RT = 6

ST = QT + 9

therefore

QT = ST - 9

and

QR = QT + RT = ST - 9 + 6 = ST - 3

due to the principles of cumulative triangles

PQ/ST = QR/RT = 18/ST = (ST - 3)/6

108/ST = (ST - 3)

108 = (ST - 3)ST = ST² - 3ST

ST² - 3ST - 108 = 0

we can the write

x² - 3x - 108 = 0

and the solution for such a squared equation is

x = (-b ± sqrt(b² - 4ac))/(2a)

in our case

a = 1

b = -3

c = -108

x = (3 ± sqrt(9 - 4×1×-108))/2 = (3 ± sqrt(441))/2 =

= (3 ± 21)/2

x1 = (3+21)/2 = 24/2 = 12

x2 = (3-21)/2 = -18/2 = -9

a negative solution for real lengths is not valid, so we know

x = ST = 12

so,

QR = ST - 3 = 12 - 3 = 9

and then

QT = QR - RT = 9 - 6 = 3

Please someoene help me I am so confused
WILL GIVE BRAINLIEST

Answers

Answer: 42.0

Step-by-step explanation:

HELP PLEASE! A survey asked 200 campers to choose their favorite activity. The results are displayed in this circle graph.

How many campers chose basketball as their favorite activity?



26 campers


36 campers


44 campers


58 campers

Answers

Answer:

44 campers chose basketball

What is the diameter of a sphere with a volume of 397 m 3 to the nearest tenth of a meter?

Answers

The diameter of a sphere with a volume of 397 meter cube to the nearest tenth of a meter is 9.1 meters

Volume of a sphere

volume of a sphere = 4 / 3 πr³

where

r = radius of the sphere

Therefore,

volume = 397m³

Diameter = radius  × 2

Hence,

volume of a sphere = 4 / 3 πr³

volume of a sphere = 4 / 3 × 3.14 × r³

397 = 12.56 / 3 r³

cross multiply

397 × 3 = 12.56 r³

1191 = 12.56 r³

divide both sides by 12.56

r³ = 1191 / 12.56

r = ∛94.8248407643

r = 4.56009658

Hence,

diameter = 4.56009658 × 2 = 9.12 = 9.1 meters

learn more on sphere here: https://brainly.com/question/3008257

The monthly rent for an 800 square foot office is $975. For an 1100 square foot office the rent is $1125 Write and solve a linear equation to find out the rent for a 1500 square foot office

Answers

There is the answer step by step

I need help on this problem, i checked some that I think might be right, could I get some help on it?

Answers

I don’t know what the answer is

Answer:

You are right

Step-by-step explanation:

I have to turn a bunch of these questions tomorrow so pleade help

Answers

Answer:

21,42/2,-(42/-2)

Step-by-step explanation:

please mark me as brainlest

Mrs. smith has 5 times as many markers and colored pencils is 54.How many markers does mrs. smith have

Answers

Answer:

The answer is 270

Step-by-step explanation:

5×54=270

The answer will be 270, u just need to multiply 5 X 54

Question 11 . 2 p Brent is considering buying a new circular track for his model train. He estimates that the model's circumference is about 3 times the measure of the circle's diameter. With this information, Brent could derive the value of OT O length O width area Previous Next > No new data to save. Last checked at 9:51am Submit​

Answers

Brent estimates that the model's circumference is about 3 times the measure of the circle's diameter, with this, he can estimate the area.

What is a circle?

A circle is the locus of a point, such that the distance from a fixed point (center) is always constant.

The circumference of a circle is given by:

Circumference = π * diameter

Brent estimates that the model's circumference is about 3 times the measure of the circle's diameter, with this, he can estimate the area.

Find out more on circle at: https://brainly.com/question/24375372

Please assist. No links

Answers

Answer:

(B) is the answer of your question

Other Questions
#8) Translate the following phrase into an expression:108 more than yYour answerThis is atequired question Which describes the Supreme Court's ruling in the Dred Scott case?Neither free blacks nor slaves could be American citizens.The Missouri Compromise was upheld as constitutional.Runaway slaves could not be returned to their owners.Kansas and Nebraska would henceforth be free states. Answer this french question Family B lives in Boise, Idaho. Their total household monthly income is $4,675.Use the graph to calculate the central angle of each section for Family B. Then, complete the following table. Note: Express each angle measure as a number, rounded to the nearest tenth of a degree. Family B1. Housing 2. Food 3. Childcare 4. Transportation 5. Insurance 6. Other Needs 7. Taxes Which ancient ruler was famous for the gold buried with him?. damita uses the pythagorean theorem to write the equation 2k = j to represent the triangle shown. Is she correct? Explain. Which part of the nephron acts as a countercurrent multiplier?. Please help as you can What president was Barack Obama Why was the light peppered moth able to flourish prior to the Industrial Revolution?O by blending in with the treeso the ability to flyO an abundance of foodO fewer predators Read the passage from when birds get flu and cows go mad! by john diconsiglio. hughes and his team had prevented a health disaster. they recovered enough of the sick cow to stop an outbreak of mad cow disease. it had taken the team more than a month. "this wasnt exactly like finding a needle in a haystack, but it was pretty close," he says. between february 2004 and february 2007, two more cows in the u.s. tested positive for mad cow disease. in both cases, their meat products were recovered before anyone got sick. but the thought of a mad cow epidemic still keeps hughes awake some nights. the author most likely uses the tone in the passage to reinforce the point that the us is now free from mad cow disease. hughes and his team are very accomplished. another mad cow disease outbreak is possible. hughes dreams of fighting epidemics with his team. What is the area of a regular pentagon with a side of 15 cm? engineering economics The net of a square pyramid and its dimensions are shown in the diagram. What is the total surface area in square feet?1,120 ft^25,760 ft^21040 ft^2976 ft^2 The passage of blood from the atria to the ventricles is regulated by which valves?. i Want to ask about linear equation What does the energy hill represent on an energy diagram?A. The potential energy gained by the products when a reactionhappensB. The potential energy the reactants have stored in molecular bondsO C. The additional potential energy the reactants must gain in order toreactD. The final amount of potential energy of the products of thereaction The measure of an angle is 27. 5. What is the measure of its complementary angle? Which author was forced to decline the nobel prize for literature? 0.17 + (0.680.17)* 20- -14.4)/-21.3- -14.4)