Suppose that for a given computer salesperson, the table below gave the probability distribution of x = the number of systems sold in 1 month. X 1 2 3 4 5 6 7 8 P(x) 0.01 0.12 0.10 0.30 0.30 0.11 0.01 0.05 Calculate the mean value of x (the mean number of systems sold). Calculate the variance and standard deviation of x. How would you interpret these values? What is the probability that the number of systems sold is within 1 standard deviation of its mean value? What is the probability that the number of systems sold is more than 2 standard deviations from the mea
Suppose that for a given computer salesperson, the table below gave the probability distribution of x = the number of systems sold in 1 month. X 1 2 3 4 5 6 7 8 P(x) 0.01 0.12 0.10 0.30 0.30 0.11 0.01 0.05 Calculate the mean value of x (the mean number of systems sold). Calculate the variance and standard deviation of x. How would you interpret these values? What is the probability that the number of systems sold is within 1 standard deviation of its mean value? What is the probability that the number of systems sold is more than 2 standard deviations from the mea
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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Question
Suppose that for a given computer salesperson, the table below gave the
X |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
P(x) |
0.01 |
0.12 |
0.10 |
0.30 |
0.30 |
0.11 |
0.01 |
0.05 |
- Calculate the
mean value of x (the mean number of systems sold). - Calculate the variance and standard deviation of x. How would you interpret these values?
- What is the probability that the number of systems sold is within 1 standard deviation of its mean value?
- What is the probability that the number of systems sold is more than 2 standard deviations from the mean?
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