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OpenStudy (anonymous):
find the mean and the standard deviation for the set values 25, 19, 5, 21, 18, 22, 17, 10, 7
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OpenStudy (taramgrant0543664):
Well the mean is just the average of all the numbers so all you have to do is add them all up and divide by 9 because there are nine numbers in the sequence and I find it hard to explain how to find standard deviation with out the person in front of me so I found you a website and it goes step by step through the process: https://www.mathsisfun.com/data/standard-deviation-formulas.html
OpenStudy (anonymous):
okay thank you so much.
OpenStudy (taramgrant0543664):
No problem! Let me know if you have any problems with it and I'll help you through it!
OpenStudy (anonymous):
okay!
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