SampleSD Command

SampleSD( <List of Raw Data> )

Returns the sample standard deviation of the given list of numbers.

This command has also the equivalent syntax stdev( <List of Raw Data> ).

  • SampleSD({1, 2, 3}) yields 1.

  • stdev({1, 2, 3}) yields 1.

SampleSD( <List of Numbers>, <List of Frequencies> )

Returns the sample standard deviation of the numbers in the given list, having the specified frequencies.

This command has also the equivalent syntax stdev( <List of Numbers>, <List of Frequencies> ).

  • SampleSD({1, 2, 3, 4},{1, 1, 1, 2}) yields 1.3.

  • stdev({1, 2, 3, 4},{1, 1, 1, 2}) yields 1.3.

If the list contains undefined variables in the Menu view cas.svg CAS View, the command yields a formula for the sample standard deviation.

SampleSD({1, 2, a}) yields \(\frac{\sqrt{a²-3a+3}}{\sqrt{3}}\).