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1.A study found that the number of hours per day adults spend watching TV is approximately normally distributed with a mean of 5 hours and

1.A study found that the number of hours per day adults spend watching TV is approximately normally distributed with a mean of 5 hours and a standard deviation of 1.3 hours.

a.What proportion of adults watch less than 3 hours of TV each day?

b.What proportion of adults watch more than 6 hours of TV each day?

c.What proportion of adults watch between 3 and 6 hours of TV each day?

d.What is the 97th percentile of the distribution of time spent watching TV (rounded to 2 decimals)?

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