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The following data values represent a population. What is the variance of the values? 8, 10, 14, 12 A.22 B.11 C.5 D.10
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The following data values represent a population. What is the variance of the values? 8, 10, 14, 12 A.22 B.11 C.5 D.10
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Aug 11, 2017
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The following data values represent a population. What is the variance of the values?
8, 10, 14, 12
A.22
B.11
C.5
D.10
Mathematics
high-school
Eitan K
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Eitan K
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Answer:
It’s actually 5
Explanation:
Ape x
Marlon
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Aug 13, 2017
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Marlon
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Variance
is calculated by taking the differences between each number in the set and the mean, squaring the differences (to make them positive) and dividing the sum of the squares by the number of values in the set. We do as follows:
Mean = 8+10+14+12 / 4 = 11
Variance = (8-11)^2 + (10-11)^2 + (12-11)^2 + (14-11)^2 / 4
Variance = 5 <-------OPTION C
Zhigalin
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Aug 18, 2017
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