First find the mean.
How to find the mean
Count the number N of data points in your data set.
Sum up the total of your data set; add them all together.
Average = Mean = Sum/N.an
Count = 20
Sum = 2,020
Divide 2020 by 20 = 101
your mean is 101 and that is consistant with the population
IQ Scores: Use the listed IQ scores. IQ tests are designed so that the mean IQ of the population is 100. Does the sample mean suggest that the sample is consistent with the population?
IQ: 96 89 87 87 101 103 103 96 127 126 101 96 93 88 94 85 97 114 113 124
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