Mathematics, 01.04.2021 16:00 CameronVand21
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Sample means and the central limit theorem
Geologists recorded the duration (in seconds) of over 500 recent eruptions of the Old Faithful geyser in
Yellowstone National Park. Here's a histogram showing the distribution of their data:
A = 210
0.26
Relative frequency
0.22
0.18
0.15
0.11
0.07
0.04
0.00
75
300
150 225
Duration (seconds)
Suppose that we were to take random samples of 30 eruptions from this population and calculate T as the
sample mean duration of the eruptions in each sample.
which ranh chowe the most reconshlo annrovimation of the compline dictribution of
4 of 4
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There are two major tests of readiness for college: the act and the sat. act scores are reported on a scale from 1 to 36. the distribution of act scores in recent years has been roughly normal with mean µ = 20.9 and standard deviation s = 4.8. sat scores are reported on a scale from 400 to 1600. sat scores have been roughly normal with mean µ = 1026 and standard deviation s = 209. reports on a student's act or sat usually give the percentile as well as the actual score. the percentile is just the cumulative proportion stated as a percent: the percent of all scores that were lower than this one. tanya scores 1260 on the sat. what is her percentile (± 1)?
Answers: 1
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Sample means and the central limit theorem
Geologists recorded the duration (in seconds) of...
Geologists recorded the duration (in seconds) of...
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