- Descriptive Statistics
- Quantative Analysis of Data
- Dispersion and Spread of Data
Statistics - Mean & Standard Deviation
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What was the age distribution of prehistoric Native Americans?
Age Range: --------- 1-10 11-20 21-30 31-and over
Number of individuals: 34 18 17 11
Estimate the mean age expressed in years for this community, the sample standard deviation. For the class 31 and over, use 35.5 as the class midpoint.
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