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Home Q & A Board Science-Related Homework Help Mathematics Statistics and Probability
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Bjornio Bjornio
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2 years ago
Suppose the round-trip airfare between Philadelphia and Los Angeles a month before the departure date follows the normal probability distribution with a mean of $387.20 and a standard deviation of $68.50. The interval around the mean that contains 95% of the airfares is ________.

▸ $352.95, $421.45

▸ $318.70, $455.70

▸ $284.45, $489.95

▸ $250.20, $524.20
Textbook 
Business Statistics

Business Statistics


Edition: 2nd
Author:
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dora19dora19
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2 years ago
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Bjornio Author
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2 years ago
this is exactly what I needed
mambah4
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Yesterday
Good timing, thanks!
karamsidhu1
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2 hours ago
Smart ... Thanks!
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