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Mathematics 15 Online
OpenStudy (qwertty123):

Will Medal For Whoever helps! :)

OpenStudy (qwertty123):

http://prntscr.com/9wlsfp

OpenStudy (qwertty123):

Can someone help explain how to do this?

OpenStudy (studygurl14):

First step: Calucluate the mean of the x-values, and the mean of the y-values. Tell me what you get

OpenStudy (studygurl14):

Calculate*

OpenStudy (qwertty123):

Um which one would be x and y? Is y the height? And is x the Weight?

OpenStudy (studygurl14):

x is height. y is wieght

OpenStudy (qwertty123):

Whoops I meant that!

OpenStudy (studygurl14):

so tell me what you get for the mean of each

OpenStudy (qwertty123):

x=583 y=1,784

OpenStudy (qwertty123):

Is that right?

OpenStudy (studygurl14):

uh, no. The mean is teh average, remember? So add the x-values together and divide by the number of terms, which is 8. Repeat for y-values

OpenStudy (studygurl14):

I think you forgot the divide by 8 part

OpenStudy (qwertty123):

lol Yeah whoops hold on.

OpenStudy (qwertty123):

x=72.875 y=223

OpenStudy (qwertty123):

Is that it @StudyGurl14

OpenStudy (studygurl14):

Yes, that's correct. Now next step: Find the standard deviation of the x-values and the standard deviation of the y-values

OpenStudy (qwertty123):

Umm... What? I am not sure what that is.

OpenStudy (studygurl14):

It's a really long process, so if you don't want to do that, then use a standard deviation calculator online

OpenStudy (qwertty123):

Okay can you give me the calculator? I will be back on later.

OpenStudy (studygurl14):

just google "standard deviation calculator"

OpenStudy (qwertty123):

I am back! I am still stuck though.

OpenStudy (qwertty123):

Would it be B?

OpenStudy (qwertty123):

@StudyGurl14

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