What is the probability of drawing 4 red cards from a deck of cards?

Answer 1

approximately 1 in 20

______________________________________

My calculation

for the first card 13 out of 52 = I in 4

Now there are only 12 heart cards remaining among 51 cards.

for the second 12 out of 51 = or 4 out of 17. so for both (1/4) * (4/17) = 1/17

and so on 11 out of 50 and 10 out of 49.

Multiplication gives us approx. 1 out of 379.

The above is for 4 cards of a suite and not for colour.

for the first 26 out of 52 = I in 2

Now there are only 25 red cards remaining among 51 cards.

for the second 25 out of 51 so for both (1/2) * (25/51) = 25/102

and so on 24 out of 50 and 23 out of 49.

Multiplication gives us approx. 1 out of approx. 18