Question

a box contains 3 blue chips and 9 reds. a person select two chips without replacement, find the probability of selecting 2 blue chips ?

Answer 1

Answer:

$\frac{1}{22}$

Step-by-step explanation:

12 total chips

$\frac{3}{12}$ × $\frac{2}{11}$

$\frac{3*2}{12*11}$

$\frac{6}{132}$

$\frac{1}{22}$