If I could have help with this that would be great :) i’ve been working on it for about an hour.
Answers
B. $72.80
C. No
Related Questions
The results of a series of surveys revealed a population with a mean of 4.73 and a standard deviation of 0.865. If each survey has a sample size of 200, which value falls within the interval where 95% of the sample means occur? A. 4.88 B. 4.63 C. 4.91 D. 4.55
Answers
Answer:
4.63
Please give me brainliest, I really need it.
The value of 4.63 falls within the interval (4.66, 4.791) where 95% of the sample means occur option (B) is correct.
What is a confidence interval for population standard deviation?It is defined as the sampling distribution following an approximately normal distribution for known standard deviation.
The formula for finding the confidence interval for population standard deviation as follows:
[tex]\rm s\sqrt{\dfrac{n-1}{\chi^2_{\alpha/2, \ n-1}}} < \sigma < s\sqrt{\dfrac{n-1}{\chi^2_{1-\alpha/2, \ n-1}}}[/tex]
Where s is the standard deviation.
n is the sample size.
[tex]\chi^2_{\alpha/2, \ n-1} and \chi^2_{1-\alpha/2, \ n-1}[/tex] are the constant based on the Chi-Square distribution table.
α is the significance level.
σ is the confidence interval for population standard deviation.
Calculating the confidence interval for population standard deviation:
We know significance level = 1 - confidence level
It is given that:
Mean of the population x = 4.73
Standard deviation s = 0.865
Sample size n = 200
The interval where 95% of the sample means occur:
Lower limit = 4.73 - 0.865/√200
Lower limit = 4.66
Upper limit = 4.73 + 0.865/√200
Upper limit = 4.791
The interval = (4.66, 4.791)
Thus, the value of 4.63 falls within the interval (4.66, 4.791) where 95% of the sample means occur option (B) is correct.
Learn more about the confidence interval here:
brainly.com/question/6654139
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IM GIVING 20 POINTS
What is the area of a square with side lengths of 3/5 units?
15/15
9/25
6/10
3/5
Answers
Answer:
you get 9/25
Step-by-step explanation:
formula for area of square
=s^2
plug in
3/5^2
calculate
you get 9/25
Hey there!
To find the area of a square, multiply the side length by itself, also known as sqaring the side length.
We must solve 3/5 x 3/5.
3/5 x 3/5 = 0.36
The units we'll use is because units are the unt we're given, and it is squared because it is the area of a shape.
Your final answer is 0.36 .
Hope this helps!
I’m really confused can anyone help :(
Answers
Answer:
$75Step-by-step explanation:
1 dollar for every 1 ticket.
~~~~~~~~~~~~~~~~~~~~~~~~~~~`
Hope I helped!!!
GL :)
Answer: 75 the other guy is correct
Step-by-step explanation:
6. Write an inequality that is represented by the graph. (A.REI.D.12)
8
6
4
2
0
-8
-6
24
2
6
-2
-2.
4
16
Answers
Answer:
sdsdsddssssssssssssssssssssss
Step-by-step explanation:
sddsdssdsdds
What is the length of one side of a cube that has a surface area of 1,734 square mm?
Answers
Answer:
a = 17
Step-by-step explanation:
1,734 = 6a^2
1,734/6 = 6a^2/6
[tex]\sqrt{289}[/tex] = [tex]\sqrt{a^2}[/tex]
a = 17
Answer:
side = 17 mm
Step-by-step explanation:
1734/6 = 289
√289 = 17 mm
28 people in 4 rooms: 63 people in 9 rooms. Are these ratios proportional?
Answers
the ratios are ratio proportional
A helicopter flew north 325 meters and then flew east 500 meters. How far is the helicopter from its starting point?
Answers
Answer:
596.34m approx
Step-by-step explanation:
Given data
Let the Starting point be x
A helicopter flew north 325 meters from x
Then flew east 500 meters
Let us apply the Pythagoras theorem to solve for the resultant which is the distance from the starting position
x^2= 325^2+500^2
x^2=105625+250000
x^2= 355625
x= √355625
x=596.34m
Hence the distance from the starting point is 596.34m approx
what is the Constant in
3x + 7
Answers
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
Answers
Answer: a
Step-by-step explanation:
I need help on this question I got 145.13 but i dont know what I did wrong
Answers
Answer:
145.12
Step-by-step explanation:
3.14 * 16 / 2 + 120
I basically got the same answer
What is the area of a rectangular shaped yard enclosed by a fence that is 35 feet along the North side and 20 feet along the west side?
Answers
Answer:
700 ft
Step-by-step explanation:
35ft x 20ft = 700ft
please help me i will mark you brainliesttttttttttttttttttttttttttt
Answers
Answer:
ion no but pls mark me ill tell my brother to anser it and help you
Step-by-step explanation:
For the rectangle it’s 40cm^2
For the triangle it’s 14cm^2
And for the square it’s 49cm^2
The picture attached shows all my work and explains how to do it hope this helps:)
Ashton had 28 1/2feet of wrapping paper. He uses 3/8
feet wrapping paper to wrap each gift
How many gifts can Ashton wrap?
Answers
Answer:
Step-by-step explanation.
here is a trick
try turning both fractions into a decimal and then divide then. It will be much easier.
153 oz to ___lbs ____oz
Answers
Answer:
153 oz to 9.5625 lbs
Step-by-step explanation:
You can round 9.5625 lbs to 8 or just say 9.5
In ΔMNO, the measure of ∠O=90°, NO = 1.8 feet, and OM = 3.6 feet. Find the measure of ∠M to the nearest tenth of a degree.
Answers
Explanation- tan-1(1.8/3.6)=26.56°
Answer:26.6
Step-by-step explanation:
delta math right ?
What is the area of the trapezoid?
Answers
Answer:
26 this is because 4x5=20 then add the triangle which is 3x4 ÷ 2 equalling 26
Answer:
Step-by-step explanation:
(5+8)/2 = 13/2 = 6.5
6.5*4 = 26m²
The formula for the area of a trapezoid is the same as a trapezium :
(a+b)/2 *h = Area
Hellohello, if you able to help me then please do. (:
Answers
Answer:
g=12
Step-by-step explanation:
3 + g = 15
g = 15-3
g = 12
Steps:
3 + g = 15
g = 15 - 3
g = 12
Check:
3 + g = 15
3 + 12 = 15
15 = 15 ✅
Brainliest???
What is:
(9t+5)+(3t-6)
simplified?
Answers
Answer:
12t - 1
Step-by-step explanation:
(9t+5) + (3t-6)
9t + 5 + 3t - 6
12t - 1
Which set of ordered pairs represents y as a function of x?
Answers
Answer:
D is the correct answer
Explanation:
the following function satisfies each output to its input for the set D
f(x)=x/2
let's check each pair:
0/2=0
-1/2=-0.5
-2/2=-1
-3/2=-1.5
-4/2=-2
the reason why A, B, and C can't be pairs of inputs and outputs x and y it's because a variable x can't have more than one y (that's a behaviour of an equation not a function!)
- in A x=-1 | y=2, -2 and this wrong
- in B x=3 | y=9, 16 and this wrong
- in C x=0 | y=0, 1 and this wrong
I hope this was helpful
44 students decided to take a cupcake, and 33 of them picked vanilla. What percentage of the students picked
Answers
Answer:
33.33%
Step-by-step explanation:
Given data
Total number of students= 44
Number of students that picked vanilla= 33
Therefore the percentage that picked vanilla is
=44-33/44*100
=11/33*100
=0.3333*100
=33.33%
Hence the percentage is 33.33%
The graph represents the profit earned on the sale of boxes of cookies. What does the slope represent?
Answers
Answer:
There is no graph
Step-by-step explanation:
The radius of a circle is 4 centimeters. What is the area of a sector bounded by a 135 degrees arc?
Answers
Answer:
The answer is 0.235619449 rad m.
Which description can be written as the expression StartFraction 8 Over 21 n EndFraction?
Answers
Answer: It is the quotient of 21 times and number and 8.
Answer:
The answer is "A"
Step-by-step explanation:
please make me b r a i n l i e s t thx
4) What is the probability to draw a black checker from a bag of 6 black
checkers and 4 red checkers, replacing it and drawing another black checker.
Answers
Step-by-step explanation:
Divide the number of events by the number of possible outcomes. This will give us the probability of a single event occurring. In the case of rolling a 3 on a die, the number of events is 1 (there's only a single 3 on each die), and the number of outcomes is 6.
75 POINTS!!!! ASAP!!!! No Links!
PLEASE SHOW WORK
A whispering room is elliptical. It measures 32 feet wide and 66 feet long. If a person is standing at one focus, her whisper can be heard by a person standing at the other focus. How far apart are the two people?
Answers
Answer: 57.72 ft apart
Step-by-step explanation:
Foci distance from centers given by sqrt(33^2-16^2)
Multiply by two to get the distance from each other
I need help what’s the answer!!
Answers
You're right, 20 is correct
20 x 20 x 20, aka [tex]20^3[/tex] = 8000,
so [tex]\sqrt[3]{8000} = 20.[/tex]
Isabella has 63 hair bows. Isabella's sister has h more hair bows than Isabella. Choose the expression that shows how many hair bows Isabella's sister has.
Answers
Answer:
(h+63)
Step-by-step explanation:
Given that,
Isabella has 63 hair bows.
Isabella's sister has h more hair bows than Isabella. It means,
Isabella's sister = h+63
h and 63 are added as Isabella's sister has h more hair bows than Isabella.
Hence, the expression would be (h+63).
On Wednesday evening Sonto spent 1/2 hour doing homework,45minutes doind housework,1 hour visiting friends and 1 1/2 hour television. Write this down the information as a ratio
Answers
Answer:
On Wednesday evening Sonto spent 30 minutes doing homework, 45 minutes doing housework, 60 minutes visiting friends and 90 minutes watching television. Write this down the information as a ratio
Step-by-step explanation:
Total amount of time = 225 minutes
2/15 Homework
1/5 Housework
4/15 Visiting friends
2/5 Watching TV
Whole number ratio
2 : 3 : 4 : 6
PLZ SOMEONE HELP RIGHT AWAY!
10x+2(8x+10)
Answers
Answer:
26x+20
Step-by-step explanation:
A line passes through the point (8, 7) and has a slope of 5/4 Write an equation in slope-intercept form for this line.