1. What is the probability that an outcome of a normal random variable is within two standard deviations of the mean?

2. What is the probability that an outcome of a normal random variable is within 2.5 standard deviations of the mean?

2. What is the probability that an outcome of a normal random variable is within 2.5 standard deviations of the mean?

Finite Mathematics and Its Applications

12th edition

Authors: Larry J. Goldstein, David I. Schneider, Martha J. Siegel, Steven Hair

ISBN: 978-0134768632

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