The length of time that a certain type of watch will run is an exponential random variable. This type of watch will run for an average of 31 months. Find the variance for the number of months that this type of watch will run. Variance: ____________________ __________________ percent of the watches will run for more than 3 years before stopping.
The length of time that a certain type of watch will run is an exponential random variable. This type of watch will run for an average of 31 months. Find the variance for the number of months that this type of watch will run. Variance: ____________________ __________________ percent of the watches will run for more than 3 years before stopping.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.6: Regression And Median-fit Lines
Problem 6PPS
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- The length of time that a certain type of watch will run is an exponential random variable. This type of watch will run for an average of 31 months.
- Find the variance for the number of months that this type of watch will run.
Variance: ____________________
- __________________ percent of the watches will run for more than 3 years before stopping.
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