October 9, 2015

Homework Help: Statistics

Posted by David on Tuesday, June 11, 2013 at 1:44pm.

. 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 obtained.
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
a) P(has never shopped on the Internet and is a male)
b) P(has shopped on the Internet and is a female)

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