he ages of first graders on September 1 at Garden Elementary School are uniformly distributed from 5.8 to 7.4 years. a) Find the mean age of first graders at the school on September 1. b) Find the probability that a randomly selected first grader is less than 6.4 years old. c) Find the age of a first grader who is at the 70th percentile.

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a To find the mean age of first graders at the school on September 1 we use the formula for the mean ... View the full answer