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6.1 Exercise 43

Avg difficulty 2.5

Use the following information to answer the next two exercises: The life of wearable fitness devicess is normally distributed with mean of 4.1 years and a standard deviation of 1.3 years. A wearable fitness device is guaranteed for three years. We are interested in the length of time a wearable fitness device lasts.

Define the random variable X in words. X = _______________.

OpenStax Introductory Business Statistics 2e, 6.1 The Standard Normal Distribution, exercise 43

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Adapted from Introductory Business Statistics 2e © 2023 Rice University. Licensed under CC BY 4.0. Source: Introductory Business Statistics 2e. Imported at revision 50ec917.