Consider the following to answer the question(s) below:
A recent survey of local cell phone retailers showed that of all cell phones sold last month, 64% had a camera, 28% had a music player, and 22% had both.
-The probability that a cell phone sold last month did not have either a camera or a music player is
A) 0.22
B) 0.70
C) 0.92
D) 0.30
E) 0.08

Question

Quizplus · Accepted Answer

Using the principle of inclusion-exclusion, the probability that a phone has either a camera or a music player is 0.64 + 0.28 - 0.22 = 0.70. Therefore, the probability that a phone has neither is 1 - 0.70 = 0.30.

Consider the Following to Answer the Question(s) Below