What is the mean of 198, 203, 241, 255, 211, 199, 198?
asked Dec 16, 2014 in Statistics Answers by matt

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2 Answers

The usual way of finding the mean within a dataset is to add the data values together and divide by the number of values in the set. An easier way is to remove a bias (in this case 200 as an easy number) first and take off the bias from each value before adding: -2, 3, 41, 55, 11, -1, -2. Added together we get 105, divided by 7=15. Add back the bias=215, so the mean is 215.
answered Dec 17, 2014 by Rod Top Rated User (479,580 points)

Given 198, 203, 241, 255, 211, 199, 198
Mean = (198+203+241+255+211+199+198)/7
Mean = 215

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answered Dec 19, 2014 by John Marsh Level 8 User (30,400 points)
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