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"old faithful geyser in yellowstone national park has a mean time of 85 minutes between eruptions with a standard deviation of 21.

"old faithful geyser in yellowstone national park has a mean time of 85 minutes between eruptions with a standard deviation of 21.25 minutes if the interval of time between eruptions is normally distributed, find the probability that in a sample of 30 eruption intervals, the average interval of time between eruptions was
1- more than 75 minutes
b-between 78 and 83 minutes
c-less than 96 minutes"
- Sent to Statistics And Probability Expert Tutor on 5/6/2010 at 10:52pm
You asked:
"old faithful geyser in yellowstone national park has a mean time of 85 minutes between eruptions with a standard deviation of 21.25 minutes if the interval of time between eruptions is normally distributed, find the probability that in a sample of 30 eruption intervals, the average interval of time between eruptions was
1- more than 75 minutes
b-between 78 and 83 minutes
c-less than 96 minutes"

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old faithful geyser in yellowstone national park has a mean time of 85 minutes between eruptions with a standard deviation of 21.doc

old faithful geyser in yellowstone national park has a mean time of 85
minutes between eruptions with a standard deviation of 21.25 minutes if
the interval of time between eruptions is normally...

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