Use the 68-95-99.7 rule to solve the problem. The amount of Jen's monthly phone bill is normally distributed with a mean of $56 and a standard deviation of $12. Fill in the blanks. and $_. 68% of her phone bills are between $_ 32, 56 56, 68 32, 80 44, 68- 00
Use the 68-95-99.7 rule to solve the problem. The amount of Jen's monthly phone bill is normally distributed with a mean of $56 and a standard deviation of $12. Fill in the blanks. and $_. 68% of her phone bills are between $_ 32, 56 56, 68 32, 80 44, 68- 00
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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
Transcribed Image Text:QUESTION 22
Use the 68-95-99.7 rule to solve the problem.
The amount of Jen's monthly phone bill is normally distributed with a mean of $56 and a standard
deviation of $12. Fill in the blanks.
and $__.
68% of her phone bills are between $
32, 56
56, 68
32, 80
44, 68
0000
Expert Solution
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Understanding the 68 - 95 - 99.7 rule
This rule states the percentage of area which covers the graph and standard deviation associated with it thus we can easily find the range for the given percentage of bills
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