A9. Consider a coin experiment, where out of 10 trials, 3 successes were observed. Suppose

that the Beta-Binomial model (with a uniform prior) was selected to fit the data. Which

of the below is TRUE?

Hint: Recall that the Probability Mass Function (PMF) for the Binomial distribution

nk (1-0)n-k, and the Probability Density Function (PDF) for the

is P(x = k) =

(n- -k)!k!

090-1 (1-0)³-1)

Beta distribution is

I(a+ß)

T(a)r (3)

A: posterior p(0|x) ∞ Beta(4,8)

B: posterior p(x) x Beta(12,5)