standard deviation

by **li.maor** Mon Jul 09, 2012 6:03 pm

Hi there
how would you go about this one?

thanks
-L

by **bineeshnair4u** Tue Jul 10, 2012 9:21 am

Let m - mean and d - std deviation

as per question m - 2d = 58
m + 3d = 98
solving d = 8
and m = 74
Answer A

by **bineeshnair4u** Tue Jul 10, 2012 9:22 am

i have a image for this.. i am not able to post it... its good to understand it using image.. how do u post image??

by **li.maor** Wed Jul 11, 2012 5:00 am

Hi thanks
got it now
you can upload pic using a URL

-L

by **RonPurewal** Wed Jul 11, 2012 7:54 am

please search the forum. do not post new threads for problems with existing threads.

mean-deviation-t4558.html

this thread is now locked.