In your sock drawer you have 6 blue, 7 gray, and 2 black socks. Half asleep one morning you grab 2 socks at random and put them on.
1. Find the probability you end up wearing the following socks. (Round your answers to four decimal places.)
a) 2 blue socks.
b) no gray socks.
c) at least 1 black sock.
d) matching socks.

a) 0.1429

b) 0.2667

c) 0.3067

d) 0.3524

Step-by-step explanation:

Blue = 6

Gray = 7

Black = 2

Number of socks = 15

a) 2 blue socks.

The probability of getting two consecutive blue socks is:

b) no gray socks.

The probability of getting no grey socks with two picks is:

c) at least 1 black sock.

The probability of getting at least one black sock is:

d) matching socks.

The probability of getting matching socks is the sum of the probabilities of getting 2 black, 2 blue or 2 gray socks:

answer: answer is b.

[m < b = 120º]

step-by-step explanation: