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Business, 18.03.2021 01:10 johnsonwhitney2

An office manager has received a report from a consultant that includes a section on equipment replacement. The report indicates that scanners have a service life that is normally distributed with a mean of 52 months and a standard deviation of 4 months. On the basis of this information, determine the proportion of scanners that can be expected to fail in the following time periods: a. Before 38 months of service.
b. Between 40 and 45 months of service.
c. Within 2 months of the mean life.

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