QQuestionStatistics
QuestionStatistics
What is the sample variance of the following numbers: 2, 4, 6, 8, 10, 12, 14?
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Answer
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Step 1I'll solve this step-by-step using the sample variance formula:
Step 2: Calculate the mean (average)
\bar{x} = \frac{2 + 4 + 6 + 8 + 10 + 12 + 14}{7} = \frac{56}{7} = 8
First, I'll sum all the numbers and divide by the total count:
Final Answer
The sample variance is 20.
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