Question

the data on the number of boxes per family in a random sample of 45 is...

the data on the number of boxes per family in a random sample of 45 is given in the form of a frequency distrubution:
X: 3,4,5,6,7,8,9
F: 6,12,7,3,2,13,2

Compute the variance and SD

Homework Answers

Answer #1

The solution to this problem is given by

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A random sample of 20 women yields the given data on the number of minutes of...
A random sample of 20 women yields the given data on the number of minutes of exercise during the week of March 12 – 18. 10.0 90.6 48.5 50.4 57.4 99.6 0.0 5.0 0.0 0.0 5.0 2.0 10.5 5.0 47.0 0.0 5.0 54.0 0.0 48.6 Compute the Mean, Median, Range, Standard Deviation and Variance for this set of data. a) Mean b) Median c) Range d) Standard Deviation e) Variance
A random sample of 20 men yields the given data on the number of minutes of...
A random sample of 20 men yields the given data on the number of minutes of exercise during the week of March 12 – 18. 43.5 91.5 7.5 0.0 0.0 28.5 199.5 57.0 142.5 8.0 0.0 78.0 34.5 0.0 57.0 151.5 8.0 0.0 9.0 36.0 Compute the Range, Standard Deviation, and Variance.
A random sample of 20 women yields the given data on the number of minutes of...
A random sample of 20 women yields the given data on the number of minutes of exercise during the week of March 12 – 18. 10.0 90.6 48.5 50.4 57.4 99.6 0.0 5.0 0.0 0.0 5.0 2.0 10.5 5.0 47.0 0.0 5.0 54.0 0.0 48.6 Compute the Range, Standard Deviation, and Variance.
A random sample of the number of students per class at Citrus College is shown below....
A random sample of the number of students per class at Citrus College is shown below. (6 points) Class Boundaries Frequency 4.5 - 9.5 11 9.5 - 14.5 18 14.5 - 19.5 7 19.5 - 24.5 3 1. Find the modal class for the data. Modal Class is Select an answer 4.5 - 9.5 9.5 - 14.5 14.5 - 19.5 19.5 - 24.5    2. What formula will you use for the mean? ¯x=∑w⋅x∑wx¯=∑w⋅x∑w μ=∑xNμ=∑xN ¯x=∑xnx¯=∑xn ¯x=∑f⋅xm∑fx¯=∑f⋅xm∑f 3. What formula will...
Let the sample data and its corresponding distributions be given as follows: values (x) frequency (f)...
Let the sample data and its corresponding distributions be given as follows: values (x) frequency (f) 0 3 2 4 4 1 answer the following, find (a) range of the data (b) the median of the data (c)mean of the data (d) variance of the data (e) Standard error of the sample mean Let the sample data and its corresponding distributions be given as follows: values (x) frequency (f) 0 3 2 4 4 1 answer the following, find (a)...
For a family with 4 kids define a random variable X to be equal to the...
For a family with 4 kids define a random variable X to be equal to the number of boys in the family. a) Describe and plot probability density and cumulative probability functions. b) Find the mean and variance of X. c) Compute and show on the plots the probability of having at least two girls.
For a family with 4 kids define a random variable X to be equal to the...
For a family with 4 kids define a random variable X to be equal to the number of boys in the family. 1. Describe and plot probability density and cumulative probability functions. 2. Find the mean and variance of X. 3. Compute and show on the plots the probability of having at least two girls.
A random sample of 500 owners of single-family homes is drawn from the population of a...
A random sample of 500 owners of single-family homes is drawn from the population of a city. Let the random variable X denote the value of the house, in thousands of dollars. The following information is given to you: n=500, ∑xi =107,226 ∑ (xi − x )2 =1,398,308 a. Compute the sample mean and standard deviation of the value of the houses in this sample. b. Construct a 95% confidence interval for the mean value of the houses in this...
1.A random sample of 20 men yields the given data on the number of minutes of...
1.A random sample of 20 men yields the given data on the number of minutes of exercise during the week of March 12 – 18. 43.5     91.5     7.5       0.0       0.0       28.5     199.5   57.0     142.5   8.0       0.0       78.0     34.5     0.0       57.0     151.5   8.0       0.0       9.0       36.0 Compute the Mean, Median, and Mode for this set of data. 2.A random sample of 20 women yields the given data on the number of minutes of exercise during the week of March 12 –...
The following data represent the number of chips per cookie in a random sample of a...
The following data represent the number of chips per cookie in a random sample of a name brand. 24 35 28 28 22 23 29 23 26 32 22 31 25 a. What is the​ 5-number summary?        b. Sketch a​ box-plot of the data. Input this into the SHOW YOUR WORK tab. c. What is the overall shape of the​ data: A. ​bell-shaped B. ​right-skewed C. ​left-skewed