What probability model should be used and why

Reference no: EM13224442

It is estimated that 55% of the freshmen entering a particular college will graduate from that college in four years.
(a) What probability model should be used and why?
(b) For a random sample of 5 entering freshmen, what is the probability
that exactly 3 will graduate in four years.
(c) For a random sample of 5 entering freshmen, what is the probability
that a majority will graduate in four years.
(d) 80 entering freshmen are chosen at random. Find the mean and stan-
dard deviation of these 80 that will graduate in four years.

Reference no: EM13224442

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