24a) A coin having a probability p of landing heads, is continually flipped until at least one head and one tail have been flipped.
a) Find the expected number of flips needed.
57) The number of storms in the upcoming rainy season is Poisson distributed but with a parameter value that is uniformly distributed over (0,5). That is , L is uniformly distributed over (0, 5). That is, L =l , the number of storms is Poisson with mean l. Find the probability there are at least three storms this season.