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radek2166
06-05-2005, 04:05 PM
n=8

x38,15,30,35,20,30,30,10

Can someone give me the SD for this please? I am checking my work here

Thanks.
boncher
06-05-2005, 04:20 PM
Std.Dev.~9.260
elitegimp
06-05-2005, 05:09 PM
[ QUOTE ]
n=8

x38,15,30,35,20,30,30,10

Can someone give me the SD for this please? I am checking my work here

Thanks.

[/ QUOTE ]

It depends on whether you are talking about a sample (the 8 numbers you gave were pulled at random from a much larger dataset) or a population (those numbers are the only numbers in your dataset), because there are two different formulas.

For a SAMPLE, the standard deviation 9.8995, for a POPULATION it is 9.2601
radek2166
06-05-2005, 08:11 PM
Thank you. It is a sample.