A consumer organization estimates that 32% of the households in a particular community have one television set,38% have two sets,and 16% have three or more sets.If two households are chosen at random,what is the probability that at least one has one ore more television sets?
A)0.241
B)0.986
C)0.740
D)0.020
E)0.860

Question

Quizplus · Accepted Answer

The probability that a household has no television sets is 1 - (0.32 + 0.38 + 0.16) = 0.14. The probability that both households have no television sets is 0.14 * 0.14 = 0.0196. Therefore, the probability that at least one household has one or more television sets is 1 - 0.0196 = 0.9804, which is approximately 0.986.

A Consumer Organization Estimates That 32% of the Households in a Particular