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. assume that each day of the year is equally likely, and ignore february 29. what is the p. m.f of x. f(k)= (you can use ^ as the power symbol, e. g. use x^2 to denote x2. also, write your answer in fraction instead of decimals. note: write your answer in terms of k rather than x.)