Jennifer prend au hasard deux chaussettes parmi 24 qui ont été jetées pêle-mêle dans un tiroir ;8 sont blanches, 10 sont noires, 4 sont rose

Jennifer randomly takes two socks out of 24 that have been thrown together in a drawer. 8 are white, 10 are black, 4 are pink and 2 are orange. What is the probability of drawing two white socks?

P ( two white socks)  =

[ Number of ways to choose 2 white socks from 8] / [Number of ways to choose 2 socks from 24] =

C(8, 2)  / C(24, 2)  =

7/69  ≈  .1014   ≈  10.14 %

8/24 x 7/23 =56/552 = 7/69 =10.14%