Question

A drawer contains 5 red socks, 9 white socks, and 6 blue socks. Without looking, you draw out a sock and then draw out a second sock without returning the first sock.

Find P(blue, then blue).

Answer 1

Total = 5+9+6 = 20
p(blue) = 6/20 = 0.3
30%

Answer 2

Answer:P = Number of favourable outcomes ÷ Sum of total outcomes

So, Probability of drawing a blue sock is

Number of blue socks ÷ Number of total socks

= 6 ÷ 20

= 3 ÷ 10

= 0.3

Explanation: