The Bureau of Labor StatisticsAmerican Time Use Surveyshowed that the amount of time spent using a computer for leisure varied greatly by age. Individuals age 75 and over averaged 0.15 hour (9 minutes) per day using a computer for leisure. Individuals ages 15 to 19 spend 1.0 hour per day using a computer for leisure. If these times follow an exponential distribution, find the proportion of each group that spends:

rev: 05_18_2015_QC_CS-14973

10.00 points Required information

a.	Less than 8 minutes per day using a computer for leisure.(Round your answers to 4 decimal places.)

	Proportion
Age 75 and over
Ages 15 to 19

References eBook & Resources WorksheetDifficulty: 2 IntermediateLearning Objective: 07-05 Describe the exponential probability distribution and use it to calculate probabilities.Check my work

10.00 points Required information

b.	More than two hours.(Round your answers to 4 decimal places.)

	Proportion
Age 75 and over
Ages 15 to 19

References eBook & Resources WorksheetDifficulty: 2 IntermediateLearning Objective: 07-05 Describe the exponential probability distribution and use it to calculate probabilities.Check my work

10.00 points Required information

c.	Between 16 minutes and 48 minutes using a computer for leisure.(Round your answers to 4 decimal places.)

	Proportion
Age 75 and over
Ages 15 to 19

References eBook & Resources WorksheetDifficulty: 2 IntermediateLearning Objective: 07-05 Describe the exponential probability distribution and use it to calculate probabilities.Check my work

10.00 points Required information

d.	Find the 30th percentile. seventy percent spend more than what amount of time?(Round your answers to 2 decimal places.)

Amount of time for individuals ages 75 and over	minutes
Amount of time for individuals ages 15 to 19	minutes