Back to 6.2 Using the Normal Distribution

6.2 Exercise 57

Avg difficulty 2.5

Use the following information to answer the next three exercises: The length of time it takes to find a parking space at 9 a.m. follows a normal distribution with a mean of five minutes and a standard deviation of two minutes.

A child playing a carnival game will be a winner one out of five times. If 190 games are played, what is the probability that there are

  1. somewhere between 34 and 54 wins
  2. somewhere between 54 and 64 wins
  3. more than 64 wins

OpenStax Statistics, 6.2 Using the Normal Distribution, exercise 57

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