Suppose that for a given computer salesperson, the probability distribution of x = the number of systems sold in one week is given by the following table. 2 3 4 5 6 8 P(x) 0.04 0.10 0.13 0.30 0.31 0.10 0.01 | 0.01 (a) Find the mean value of x (the mean number of systems sold). (b) Find the variance and standard deviation of x. (Round your standard deviation to four decimal places.) variance standard deviation How would you interpret these values? (Round your standard deviation to four decimal places.) The mean squared deviation from the mean number of systems sold in one week is .A typical deviation from the mean number of systems sold in one week is (c) What is the probability that the number of systems sold is within 1 standard deviation of its mean value? (d) What is the probability that the number of systems sold is more than 2 standard deviations from the mean?
Suppose that for a given computer salesperson, the probability distribution of x = the number of systems sold in one week is given by the following table. 2 3 4 5 6 8 P(x) 0.04 0.10 0.13 0.30 0.31 0.10 0.01 | 0.01 (a) Find the mean value of x (the mean number of systems sold). (b) Find the variance and standard deviation of x. (Round your standard deviation to four decimal places.) variance standard deviation How would you interpret these values? (Round your standard deviation to four decimal places.) The mean squared deviation from the mean number of systems sold in one week is .A typical deviation from the mean number of systems sold in one week is (c) What is the probability that the number of systems sold is within 1 standard deviation of its mean value? (d) What is the probability that the number of systems sold is more than 2 standard deviations from the mean?
Chapter9: Sequences, Probability And Counting Theory
Section9.7: Probability
Problem 5SE: The union of two sets is defined as a set of elements that are present in at least one of the sets....
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I was wondering where part (d) was. I figured I could use the same process but I want to make sure I'm answering the question right. So far I added the standard deviation to itself to get 2.7078 and added it to the
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