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The numbers of members in 6 yoga clubs are 80, 74, 77, 71, 75, and 91. Find the population standard deviation of the numbers of members to the nearest tenth.
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The numbers of members in 6 yoga clubs are 80, 74, 77, 71, 75, and 91. Find the population standard deviation of the numbers of members to the nearest tenth.

User Jomarie
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1 Answer

4 votes
mean = 78
x - mean squared

80-78 = 2 4
74-78= -4 16
77-78 = -1 1
75-78 = -3 9
91-78 = 13 169

Total 199

standard deviation = square root (199/6) = 5.8 to nearest tenth

User Option
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