Question

A sock drawer contains winter socks and summer socks. Both varieties come in two colors: white and black. There is a pair of each combination. If a sock is selected randomly, what is the probability it will be a black sock or a summer sock? A. 0.25 B. 0.5 C. 0.625 D. 0.75

Answer 1

D 0.75

Explanation:

There are a total of 4 pairs: White-Summer, Black-Summer, White-Winter, and Black-Winter. There are a total of 8 socks.

The probability of pulling a black sock or a summer sock is the number of all black or summer socks divided by the total number of socks.

The number of black or summer socks includes 1 pair of White-Summer, 1 pair of Black-Summer, and 1 pair of Black-Winter.

This makes for 6 black or summer socks.

Divide 6 by 8 to get 0.75