Question

Two thousand randomly selected adults were asked whether or not they have ever shopped on the Internet. The following table gives a two-way classification of the responses.

	Have Shopped	Have Never Shopped
Male	500	700
Female	300	500

Suppose one adult is selected at random from these 2000 adults. Find the following probabilities. Round your answers to four decimal places.

1. P(has never shopped on the Internet or is a female)

2. P(is a male or has shopped on the Internet)

3. P(has shopped on the Internet or has never shopped on the Internet)

1. A statistical experiment has eight equally likely outcomes that are denoted by 1,2,3,4,5,6,7, and 8. Let event A={3,4,8} and event B={1,2,7}. The events A and B ___________ mutually exclusive events.

Answer 1