QuestionA contractor records the areas, in square feet, of a small sample of houses in a neighborhood to determine data about the neighborhood. They are:
Which of the following represents the numerator in the calculation of variance and standard deviation?
DONE
Studdy Solution
STEP 1
1. The variance and standard deviation are calculated using the formula for a sample.
2. The numerator in the calculation of variance is the sum of squared deviations from the mean.
STEP 2
1. Calculate the mean of the data set.
2. Determine the deviations from the mean for each data point.
3. Square each deviation.
4. Sum the squared deviations to find the numerator for variance.
STEP 3
Calculate the mean of the data set:
STEP 4
Determine the deviations from the mean for each data point:
STEP 5
Square each deviation:
STEP 6
Sum the squared deviations:
The numerator in the calculation of variance and standard deviation is:
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