WEBVTT
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this question gives us a list of numbers and asks
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us to find the mean the numbers that it gives
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our 9.4, 11.3, 10.5, 7.4, 9.1
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, 8.4, 9.7, 5.2, 1.1 and 4.7
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. Now we know that our formula for the mean
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is explore the mean is equal to the sum of
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all our data points. We read that some of
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X I over n where n is the sample size
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of the number of data points that we have here
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. We can count em up and find that end
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is equal to 10. There, 10 data points
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You re plug all of these into a calculator will
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find that the some of the data points is equal
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to, um, 76.8. Now all that's left
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to do is divide the sun by the sample size
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will have 76 point 8/10 and we can say that
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that the Mean X bars go to 7.68