1. Suppose that there is a Beta(2,2) prior distribution on the probability µ that a coin will yield a "head" when spun in a speci?ed manner. The coin is independently spun 10 times, and "heads" appears 3 times.
(a) Calculate the posterior mean
(b) Calculate the posterior variance
(c) Calculate the posterior probability that .45 Ç µ Ç .55.