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Author Question: The lifetimes of electronic components have a mean equal to 2.5 years and a standard deviation equal ... (Read 93 times)

Tazate

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on: Jul 24, 2018
The lifetimes of electronic components have a mean equal to 2.5 years and a standard deviation equal to 0.2 years. Within what time interval will at least 75 of the lifetimes fall?

Question 2

Complete the following statement: According to the Empirical Rule, ________ of the data for any distribution will occur within one standard deviations of the mean of the distribution.
 Fill in the blank(s) with correct word


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blakcmamba

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Reply #1 on: Jul 24, 2018
Answer to Question 1

2.1 years to 2.9 years

Answer to Question 2

68


Tazate

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Reply #2 on: Jul 24, 2018
Thank you!


blakcmamba

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Reply #3 on: Jul 24, 2018
Always glad to help...


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