A card is drawn from a well-shuffled deck of 52 cards. Find P(drawing an ace or a 9).

Solution:

A well-shuffled deck has 52 cards.

We have to find the probability of drawing an ace or a 9.

There are four aces in a deck of 52 cards.

So, P(ace) = 4/52

Also, there are four 9’s in a deck of 52 cards.

P(9) = 4/52

Probability of drawing an ace or a 9 is given by

P (ace or 9) = 4/52 + 4/52

= 1/13 + 1/13

= 2/13

Therefore, the probability of drawing an ace or a 9 is 2/13.

A card is drawn from a well-shuffled deck of 52 cards. Find P(drawing an ace or a 9).

Summary:

A card is drawn from a well-shuffled deck of 52 cards. The probability of drawing an ace or a 9 is 2/13.