# Standard deviation calculation by frequency table

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Find the standard deviation of the data in the given frequency table.

A company had 80 employees whose salaries are summarized in the frequency table below. Find the standard deviation.

Salary Employees

5001-10000 17

10001-15000 16

15001-20000 20

20001-25000 15

25001-30000 12

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This shows how to find standard deviation of given data.

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