Gmail YouTube Maps Living Environment. 5. [-/7 Points] DETAILS PODSTAT6 7.4.042. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Suppose that for a particular computer salesperson, the probability distribution of x = the number of systems sold in 1 month is given by the following table. X 5 6 8 P(x) 0.04 0.09 0.12 0.31 0.31 0.11 0.01 0.01 (a) Find the mean value of x (the mean number of systems sold). (b) Find the variance of X. Find the standard deviation of x. (Round your answer to four decimal places.) How would you interpret these values? The variance of x is the -Select- v of the number of systems sold in a month from the mean number of systems sold in a month. The standard deviation of x is the -Select-- of the number of systems sold in a month from the mean number of systems sold in a month. (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? Need Help? Read It Watch It 59"F