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The Lifetimes of a certain

The lifetimes of light bulbs of a particular type are normally distributed with a mean of 270 hours and a standard deviation of
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2. asked by Justice
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The lifetimes of projector bulbs of a particular type are normally distributed with a mean of 470 hours and a standard deviation
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2. asked by Justice
3. 1,201 views
The lifetimes of projector bulbs of a particular type are normally distributed with a mean of 470 hours and a standard deviation
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2. asked by justice
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The average remaining lifetimes for women of various ages in a certain country are given in the following table.† (A graphing
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2. asked by marth
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The lifetimes of lightbulbs of a particular type are normally distributed with a mean of 290 hoursand a standard deviation of 6
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2. asked by sally
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2) The lifetimes of light bulbs of a particular type are normally distributed with a mean of 370 hours and a standard deviation
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2. asked by John
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The lifetimes of light bulbs of a particular type are normally distributed with a mean of 370 hours and a standard deviation of
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2. asked by Michael
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In each case, consider what you know about the distribution and then explain why you would expect it to be or not to be normally
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2. asked by Clair
3. 832 views
. (8 pts) In each case, consider what you know about the distribution and then explain why you would expect it to be or not to
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2. asked by Anonymous
3. 585 views
No idea how to do this. I looked in my book and there usually is a data set present to get the first, second and third quartile.
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2. asked by J
3. 683 views