A bridge hand is made up of 13 cards from a deck of 52. Find the probability that a hand chosen at random contains at least 3 nines.

Question

Mathematics

Justice Boyer

14 March, 07:45

A bridge hand is made up of 13 cards from a deck of 52. Find the probability that a hand chosen at random contains at least 3 nines.

+5

Answers (1)

Know the Answer?

Erica Decker · Answer 1

A deck of 52 hours has 4 nines.

P (x ≥ 3) = (48 C 10 · 4 C 3) / (52 C 13) + (48 C 9 · 4 C 4) / (52 C 13) =

= 0.0412 + 0.588 = 0.1

Answer:

The probability is 0.1 (or 10%).