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Mathematics 9 Online
OpenStudy (geekfromthefutur):

MEDALS AND FANS!!

OpenStudy (geekfromthefutur):

OpenStudy (mokeira):

to get mean sum up everything and divide by the total number

OpenStudy (mokeira):

standard deviation is square root of variance

OpenStudy (geekfromthefutur):

Well I got 1185 total for just a section

OpenStudy (princeharryyy):

sd =sqrt(summation((x-mean(x))^2/(n-1)))

OpenStudy (princeharryyy):

it will take alot of time to solve sorry !!!! won't be solving this1

OpenStudy (mokeira):

@geekfromthefutur now divide by 15 to get the mean

OpenStudy (geekfromthefutur):

1113 for row B so 74.2 1185 for row A is 79

OpenStudy (mokeira):

and you have the mean :)

OpenStudy (geekfromthefutur):

What about for the 2nd part

OpenStudy (mokeira):

standard deviation?

OpenStudy (geekfromthefutur):

Yea the box plotting

OpenStudy (mokeira):

to get standard deviation: fond square root of variance....but plotting...i am not good at plooting. how about you @princeharryyy

OpenStudy (mokeira):

*find

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