Assume that the distributions for the following scenarios are normal. Use the normal standard table to find the following probabilities. Round z�-scores to the nearest hundredth. The average score on a math test is 7575 with a standard deviation of 88. What is the probability that a randomly selected test has a score of 9090 or higher? Answer The life of a gas grill is 3.53.5 years with a standard deviation 0.350.35 years. What is the probability that the grill will last less than 33 years? Answer Ambulance response times average 7.5 minutes with a standard deviation of 2.5. What is the probability that an ambulance will respond within 6 to 8 minutes. Answer

Assume that the distributions for the following scenarios are normal. Use the normal standard table to find the following probabilities. Round z�-scores to the nearest hundredth. The average score on a math test is 7575 with a standard deviation of 88. What is the probability that a randomly selected test has a score of 9090 or higher? Answer The life of a gas grill is 3.53.5 years with a standard deviation 0.350.35 years. What is the probability that the grill will last less than 33 years? Answer Ambulance response times average 7.5 minutes with a standard deviation of 2.5. What is the probability that an ambulance will respond within 6 to 8 minutes. Answer

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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