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Life Spans of Fruit Flies
The life spans of a species of fruit fly have a bell-shaped distribution, with a mean of 33 days and a standard deviation of 4 days.
(a) The life spans of three randomly selected fruit flies are 34 days, 30 days, and 42 days. Find the z-score that corresponds to each life span. Determine whether any of these life spans are unusual.
(b) The life spans of three randomly selected fruit flies are 29 days, 41 days, and 25 days. Using the Empirical Rule, find the percentile that corresponds to each life span.
Water specimens contain nitrates, a solution that is dropped into the water will cause the specimen to turn red 95% of the time. When used on water specimens without nitrates, the solution turns the water red 10% of the time. Past experience in the l..
Why is normality required for standard deviation applicability?
Select five empirical articles from peer-reviewed journals
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Valid Confidence Interval: A pollster for the Gallup Organization randomly generates the last two digits of telephone numbers to be called, so the numbers from 00 to 99 are all equally likely. Can the methods of this section be used to constru..
In the overview of this module, we saw how a linear equation can be applicable to the grocery store expenditure. Think about 2 different examples where you can formulate 2 different linear equations. Then, share those examples and linear equations. I..
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The expected value is within one standard deviation of themean(so you must calculate both the standard deviation and expected value for your game).
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