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How to Calculate Z Score in Excel.
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How to Calculate Z Score in Excel.

Rosemary Njeri

The value of the z-score tells you how many standard deviations you are away from the mean.

A positive z-score indicates the raw score is higher than the mean average and if its equal to 0, it is on the mean.

Formula to z score in excel.

You have to transfer your data to an excel spreadsheet.

Suppose you are given the 9total number of marks students got in all the subjects out of the possible 500 as follows.

NameTotal Marks
Chris450
Eric467
Mary472
Esther380
Martin280

To find the z score we first need to calculate the mean and the standard deviation.

Calculate Z Score in Excel.

The function of finding the mean is =AVERAGE(B2:B6)

Calculate Z Score in Excel.

The function to find the standard deviation is =STDEVA(B2,B6)

Calculate Z Score in Excel.

To find the Z score we click on the standardize function. This is how it looks like. You are needed to fill in with the mean and standard deviation that you got.

Calculate Z Score in Excel.
Calculate Z Score in Excel

After pressing enter and dragging the bottom right corner, you get the result above. These are your z scores.

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