Mathematics
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OpenStudy (jessicawade):
standard deviation help
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OpenStudy (anonymous):
what the heck lol
OpenStudy (jessicawade):
well i just figured i was allowed to lol i need help
OpenStudy (anonymous):
|dw:1410639642556:dw|
OpenStudy (jessicawade):
do you know about the standard deviation?
OpenStudy (anonymous):
no...sorry me not a math person XD
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OpenStudy (jessicawade):
m eiether lol ive been here for 2 hours tryign to figure oyt 1 question
OpenStudy (jessicawade):
its saturday too so i cant call my teacher lol
OpenStudy (anonymous):
XD
OpenStudy (nincompoop):
ye
you just use a formula
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OpenStudy (jessicawade):
heres my question i think i understand it
OpenStudy (jessicawade):
Calculate the mean and the population standard deviation for the data set, rounded to thousandths.
{2, 3, 5, 0, 3, 2, 1, 1, 5, 7, 8, 5, 3}
OpenStudy (nincompoop):
mean is the average
OpenStudy (jessicawade):
for the mean i got 3.46
OpenStudy (nincompoop):
standard deviation, you're going to use the link I gave you
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OpenStudy (jessicawade):
i know do i add up all of the numbers and divide by 3.46?
OpenStudy (nincompoop):
no
OpenStudy (nincompoop):
read the instruction in the link
OpenStudy (nincompoop):
you always use the sample standard deviation formula
OpenStudy (nincompoop):
unless you are told that your data is the whole population