Correct option is C
Given:
Data set: 2, 5, 6, 8, 9
Formula Used:
where is the mean of the data and n is the number of data points.
Solution:
Squared deviations from the mean
Sum of squared deviations
16 + 1 + 0 + 4 + 9 = 30
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Question
Calculate the variance for the following data:
2, 5, 6, 8, 9
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Find the square root of 0.000625 and express it as a fraction.
- 2)
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A dealer makes a profit equal to the selling price of 4 pens when he sells a total of 12 pens. What is his profit percentage?
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