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Mathematics 24 Online
OpenStudy (hockeychick23):

Suppose a sample of 256 was taken from a population with a standard deviation 96 centimeters. In this case, the sample mean will be within how many centimeters of the population mean 68% of the time?

OpenStudy (hockeychick23):

@satellite73

OpenStudy (anonymous):

sorry don't know any statistics at all, only some math

OpenStudy (anonymous):

although i think maybe 68% is withing one standard deviation you can look it up though

OpenStudy (hockeychick23):

yea 68% is 1 standard deviation

OpenStudy (hockeychick23):

the options are 4,6,8, 10

OpenStudy (anonymous):

68% is related to probability with standard deviation 1 and Mu =0; normal distribution;

OpenStudy (hockeychick23):

my guess is 8 what do you think

OpenStudy (anonymous):

as I see here this is not normal , then you have to move it to nromal

OpenStudy (anonymous):

P(-1<(X-mu)/sigma<1)

OpenStudy (hockeychick23):

wait so im wrong I thought it was right

OpenStudy (anonymous):

256 is the tall ? with cm deivation on this 96 ?

OpenStudy (hockeychick23):

oh 4

OpenStudy (hockeychick23):

i think im just going to skip the question its taking forever

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