STDEVP

 The STDEVP function in Excel is used to calculate the standard deviation of an entire population. Below are 10 examples of how to use the STDEVP function, including sample data and formulas.

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Example 1: Basic Usage

Data:
A1:A5 = {10, 20, 30, 40, 50}
Formula:
=STDEVP(A1:A5)
Result:
Calculates the standard deviation of the entire population in the range A1:A5 .

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Example 2: Using Direct Values

Formula:
=STDEVP(10, 20, 30, 40, 50)
Result:
Calculates the standard deviation of the provided values directly.

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Example 3: Including Blank Cells

Data:
A1:A5 = {10, 20, , 40, 50}
Formula:
=STDEVP(A1:A5)
Result:
Ignores the blank cell and calculates the standard deviation of the remaining values.

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Example 4: Including Text or Non-Numeric Values

Data:
A1:A5 = {10, 20, "Text", 40, 50}
Formula:
=STDEVP(A1:A5)
Result:
Ignores the text value and calculates the standard deviation of the numeric values.

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Example 5: Using a Larger Dataset

Data:
A1:A10 = {5, 15, 25, 35, 45, 55, 65, 75, 85, 95}
Formula:
=STDEVP(A1:A10)
Result:
Calculates the standard deviation of the entire dataset.

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Example 6: Combining Ranges

Data:
A1:A3 = {10, 20, 30}
B1:B3 = {40, 50, 60}
Formula:
=STDEVP(A1:A3, B1:B3)
Result:
Calculates the standard deviation of all values in both ranges.

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Example 7: Using a Single Column with Mixed Data

Data:
A1:A6 = {10, 20, "N/A", 40, 50, 60}
Formula:
=STDEVP(A1:A6)
Result:
Ignores the non-numeric value and calculates the standard deviation of the numeric values.

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Example 8: Using a Filtered Range

Data:
A1:A5 = {10, 20, 30, 40, 50}
Formula:
=STDEVP(FILTER(A1:A5, A1:A5 > 20))
Result:
Filters the range to include only values greater than 20 and calculates the standard deviation.

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Example 9: Using a Named Range

Data:
A1:A5 = {10, 20, 30, 40, 50}
Named Range:
Select A1:A5 and name it "DataRange".
Formula:
=STDEVP(DataRange)
Result:
Calculates the standard deviation of the named range.

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Example 10: Comparing STDEVP with STDEV

Data:
A1:A5 = {10, 20, 30, 40, 50}
Formulas:
=STDEVP(A1:A5) (Population Standard Deviation)
=STDEV(A1:A5) (Sample Standard Deviation)
Result:
STDEVP will give a slightly lower value than STDEV because it assumes the data represents the entire population.

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Key Notes:

• STDEVP is used when the data represents the entire population.

• If the data is a sample of the population, use STDEV instead.

• Blank cells, text, or non-numeric values are ignored in the calculation.