The formula that can be used to calculate the variance is option A.
The image is attached because it contains rude words rejected by the system
Given students’ grades on the final exam:
62, 77, 78, 80, 82, 82, 83, 84, 85, 87, 89, 95
- Variance is calculated using the formula (image attached).
Where,
s² = variance
x = the value of one observation
x bar = The mean value of all observations
n = The number of observations
Therefore, the formula that can be used to calculate the variance is option A.
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