OKay it gives me N ( 42 ) Xbar ( 9.27 ) and s ( .44 ) but i don't know which formula to use to get the standard deviation out of this. Please help! It's 2 14 in the morning and i need it for class tomorrow!.

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- November 25th 2008, 11:14 PMansimaxFinding the standard deviation
OKay it gives me N ( 42 ) Xbar ( 9.27 ) and s ( .44 ) but i don't know which formula to use to get the standard deviation out of this. Please help! It's 2 14 in the morning and i need it for class tomorrow!.

- November 26th 2008, 02:30 AMmr fantastic
- November 26th 2008, 09:23 AMansimax
yes n is the sample size but the little s is not standard deviation, it said the standard deviation was the little circle with a line on the top of it, i can't remember the name of it