The Bureau of Labor Statistics American Time Use Survey show

The Bureau of Labor Statistics’ American Time Use Survey showed that the amount of time spent using a computer for leisure varied greatly by age. Individuals age 75 and over averaged 0.40 hour (24 minutes) per day using a computer for leisure. Individuals ages 15 to 19 spend 1.3 hour per day using a computer for leisure. If these times follow an exponential distribution, find the proportion of each group that spends: a. Less than 21 minutes per day using a computer for leisure. b. b. More than two hours.c.Between 42 minutes and 126 minutes using a computer for leisure.d. Find the 28th percentile. seventy two percent spend more than what amount of time? (Round your answers to 2 decimal places.)

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