7.A bank vice president feels that each savings account customer has, on average, three credit cards.The following distribution represents the number of credit cards people own.Find the mean of the distribution. Is the vice president correct?What is the standard deviation of this distribution?a.b.Number ofcards XProbability P(X)0 1 2340.18 0.44 0.27 0.08 0.03

It is given that the distribution represents the number of credit cards people own.

Answered: A bank vice president feels that each…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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The table below shows the frequency distribution of the rainfall on 52 consecutive Wednesdays in a certain city. Use the frequency distribution to construct a histogram. Do the data appear to have a distribution that is approximately normal? Class 0-0.19 0.20 -0.39 0.40 -0.59 0.60 -0.79 0.80 -0.99 1.00-1.19 1.20 - 1.39 Frequency 21 10 6 3 7 4 1 Choose the correct histogram below. O A. O B. O C. 30- 20 10- 0- 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 30- 20- 104 0-F 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 30 20- 10- 0- 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 Q Q Q G Q Q M
The avg. production…
A probability distribution of the claim sizes for an auto insurance policy appears in the following table. Claims Probability 1 2345 0.2 0.2 0.1 0.25 0.25 Find the percentage of claims within one standard deviation of the mean. Question Help: Message instructor Add Work %
Complete the table and answer the question. a. What is mean of the probability distribution? b. What is variance of the probability distribution? c. What is standard deviation of the probability distribution?
To describe a normal distrribution, whicch two of the following are absolutely necesssary? Group of answer choices the standard deviation (or variance) of the distribution the median of the distribution the shape of the distribution the maxmium and minimum of the distribution the mean of the distributionn the size of the distribution
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A probability distribution of the claim sizes for an auto insurance policy appears in the following table. Claims Probability 1 0.15 0.2 3. 0.05 4 0.45 0.15 Find the percentage of claims within one standard deviation of the mean.
The avg. … (please complete only part c and d the rest is completed)
The graph shows the distribution of times (in hours) that teenagers spend playing video games per week. The distribution is approximately Normal, with a mean of 14 hours and a standard deviation of 4 hours. What percentage of times are between 6 and 22 hours? O 16% O 68% Video Games O 95% O 99.7% 10 14 18 26 Mark this and retum Save and Exit Next Submit ip & 4 8. m
The table below shows the frequency distribution of the rainfall on 52 consecutive Tuesdays in a certain city. Use the frequency distribution to construct a histogram. Do the data appear to have a distribution that is approximately normal? Class 0-0.19 0.20 -0.39 0.40 -0.59 0.60-0.79 0.80 -0.99 1.00-1.19 1.20-1.39 Frequency 22 13 4 1 5 6 1 Choose the correct histogram below. OA. OB. O C. 30- 20- 10- 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 30- 20- 10- 0+ 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 30- 20- 10- 0+ 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 Q Q Q Do the data appear to have a distribution that is approximately normal? O A. No, it is approximately uniform. OB. No, it is not symmetric. OC. No, it has no obvious maximum. O D. Yes, it is approximately normal.
Find the mean. variance, and standard deviation of the following probability distribution then interpret the computed values.

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