Answer 6

6)A) Find the mean and standard deviation of the probability distribution shown below. Do not assume that X is a binomial variable, and that it is just a discrete random variable. Show your work. B) Now, if X represents the number of siblings a UWM student has, determine and write using the correct probability notation: (a) the likelihood a student has exactly 3 siblings; (b) the likelihood a student has between 0 and 2 siblings, inclusive; (0) the likelihood a student has at most 3 siblings