The letters in the word probability are written on separate slips of paper.

Question

One slip of paper is drawn at random.

Find P(b)

Answer 1

I counted 11 letters in the given word, of which two of them were b's
so Prob(b) = 2/11

Answer 2

there are 11 letters, and only 2 b's, so
P(b) = 2/11