population of 700
-20 up to -10
-10 up to 0
0 up to 10
10 up to 20
What is the question please
Sorry....find mean variance standard deviation
hey..i have already sent the answers
Thank you....can u plz send details on how u got answer
variance =(sum of fx^2/sum of f)-(sum of fx/sum of f)
standard variance=square root of variance
hey...i have done the work
have you seen the work?
Yes....will review for my understanding.. I appreciate your help
can i please get the payment..?
Will send later this evening
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