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Eighty-two percent of adult Internet users have purchased products or services online. 1. For a random sample of 200 adult Internet users, find the mean

Eighty-two percent of adult Internet users have purchased products or services online.

1. For a random sample of 200 adult Internet users, find the mean and the standard deviation for the number who have purchased goods or services online. = =

2. For a random sample of 200 adult Internet users, find the probability, that exactly 170 users shop online. Write the probability using the inequality symbols <, , >, .

3.For a random sample of 200 adult Internet users, find the probability, that no more than 165 users shop online. Write the probability using the inequality symbols <, , >, .

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