Normal Probability Distributions/Normal Distributions: Finding Probabilities Question 27 Computer Useage

The normal distribution of home computer use in U.S adults has a mean of 7 hours and a standard deviation of 1 hour.

  1. What percent (to three significant figures) of adults spend more than 4 hours per week on a home computer?
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  2. If 35 adults in the United States are randomly selected, about how many would you expect to say they spend less than 5 hours per week on a home computer?  (round your answer to the nearest adult)
    {#2} adult(s)
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