Assume that there are 5 white mice and 7 black mice to choose from, and you randomly pick 4 mice. What is the probability that 2 are white and 2 are black

Question

Pls helpAssume that there are 5 white mice and 7 black mice to choose from, and you randomly pick 4 mice.
What is the probability that 2 are white and 2 are black

Answer 1

# ways for 2 white mice chosen = 5C2

# ways 2 black mice to be chosen = 7C2

 

Overall # ways to choose 4 mice = 12C4

 

The probability is 5C2•7C2 / 12C4