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

a. | Less than $6.00? (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

9. value:

10.00 points Required information

b. | More than $10.00? (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

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 | $ |

#### Top Answer

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

#### Other Answers

Here is the answer... View the full answer

## This question was asked on Jul 20, 2016 and answered on Jul 20, 2016.

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