# What is the probability that a randomly selected

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Chapter 4 / Exercise 30
Understanding Statistics in the Behavioral Sciences
Pagano
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117. What is the probability that a randomly selected cable repair visit falls within 2 standard deviations of the mean? = Difficulty: Hard
Use the following information to answer questions 118-122: Suppose that the waiting time for a license plate renewal at a local office of a state motor vehicle department has been found to be normally distributed with a mean of 30 minutes and a standard deviation of 8 minutes. What is the probability that a randomly selected individual will have a waiting time: 118. Between 15 and 45 minutes
Difficulty: Medium 119. At least 10 minutes
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Chapter 4 / Exercise 30
Understanding Statistics in the Behavioral Sciences
Pagano
Expert Verified