In 2000, 30 Percent of All Teenagers in Some Country $\mu =$

Short Answer

In 2000, 30 percent of all teenagers in some country had checking accounts. Your bank, TeenChex Inc., is interested in targeting teenagers who do not already have a checking account.
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TeenChex selects a random sample of 1,000 teenagers. Find the number of teenagers without checking accounts it can expect.
​ $\mu =$ __________
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Find the standard deviation of this number. Please, round your answer to one decimal place.
​ $\sigma =$ __________
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Fill in the missing quantities. Please round answers to the nearest whole number.
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There is an approximately 95 percent chance that between __________ and __________ teenagers in the sample will not have checking accounts.