An experiment consists of dealing 7 cards from a standard​ 52-card deck. What is the probability of being dealt exactly 4 face cards​?

Respuesta :

Answer:

The probability that the first card is a heart is 13/52

For the second card it is 12/51 (There are only 51 cards and only 12 of them are in the heart suit.)

For the third card it is 11/50

4th card 10/49

5th card 9/48

6th card 8/47

7th card 7/46

 

The total probability of all of these events occurring is the product of each individual probability.

 

So, the answer is (13 * 12 * 11 * 10 * 9 * 8 * 7) / (52 * 51 * 50 * 49 * 48 * 47 * 46)

 

which equals exactly 33 / 2,572,780 or roughly 1 chance in about 77,963

Step-by-step explanation: