Give values of mean-variance and standard deviation

Reference no: EM13159530

Let X equal the number of people selected at random that you must ask in order to find someone with the same birthday as yours. Assuming each day of the year is equally likely (and ignoring February 29)

(a)what is pmf of X?

(b)give the values of the mean, variance, and standard deviation of X?

(c)find P(X > 400) and P(X < 300).

Reference no: EM13159530

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