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In cell H9, enter a function to calculate the standard deviation of the test score samples in the range C4:C53.
In cell I9, enter a function to calculate the variance of the test score samples in the range C4:C53.
Simultaneously format the results in cells H9 and I9 to display a whole number.

Respuesta :

Select the formulae tab by clicking cell H9. Cite Statistical data  data Type C4:C53 in the number 1 box;Select cell I9, select the formula tab, choose VAR.S, and then type c4:c53 into the box. The most widely used indicator of dispersion is the standard deviation.

Why do we calculate variances?

Instead of utilizing more general mathematical strategies like grouping data into quartiles, statisticians utilize variance to examine how different numbers within a data set relate to one another. The benefit of variance is that it accepts all departures from the average as same, regardless of their trend.

What is the difference between the two given an example?

Variance can be expressed as follows for ungrouped data: The population variance for a population of size N is (Xi)2N. Sample Variance = (Xi X)2N for a sample of size N.

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