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Do Homework-Carleigh Parks-Google Chrome Secure https//www mathdcom Student playerHomeworkaspx?homeworkId-466736143&questionld-7;&fushed-fal; eadda4861592¢ nun.ye MTH265 SP18 Carieigh Parks 1 2/22/18 8:50 PM Homework: Chapter 5 Score: 0 of 1 pt 5.3.2 Save I2 of 15 (11 complele) HW Score: 39 72%, 596 of 15 pt Question hep * Last year, a person wrote 125 checks Let the random variable x represent the number of checks he weote in one day, and assume that it has a Peisson Gistrbution What is the mean number of checks wrinen per day? What is the standard deviation? What is the variance? The mean number of checks witten per day is Round to three decimal places as needed) Check Anseer

Explanation / Answer

For the Poisson distribution, one of its properties is that the mean equals the variance

mean checks per day = 125/365 = 0.3424
variance = mean = 0.3424
std. dev. = sqrt (0.3424) = 0.585

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