Standard Deviation and Variance

A bar graph shows numbers as bars. Taller bar = bigger number.

Algebra 2Common Core HSS-ID.A.4S-IDVerified correct ✓

Worked examples

Find the mean of the data set: 9, 6, 3, 1, 11, 19, 9, 9.
Answer: 8.375

Find the mean of the data set: 16, 4, 16, 20, 5, 11, 8, 18.
Answer: 12.25

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