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# The cost per item at a supermarket follows an exponential distribution. There are many inexpensive items and a few relatively expensive ones. The...

 The cost per item at a supermarket follows an exponential distribution. There are many inexpensive items and a few relatively expensive ones. The mean cost per item is \$9.00. What is the percentage of items that cost:

8. value:

10.00 points Required information

 Probability

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

9. value:

10.00 points Required information

 Probability

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

10. value:

10.00 points Required information

 c. Between \$7.00 and \$9.00? (Round your answer to 4 decimal places.)

 Probability

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

11. value:

10.00 points Required information

 d. Find the 45th percentile. Fifty five percent of the supermarket items cost more than what amount?(Round your answer to 2 decimal places.)

 Amount \$

exponential distribution mean = 1/lambda = 9 lambda = 1/9 A) P(x&lt;6) = 1 -... View the full answer

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