0. the first four moments about mean of a distribution are
0 = 16 pus = - 30 u = 40
test for the normality of the distribution.
groupe

In a certain pentagon, the interior angles are a,b,c,d,e where a,b,c,d,e are integers strictly less than 180. ("strictly less than 180" means they are "less than and not equal to" 180.) if the median of the interior angles is 61 and there is only one mode, then what are the degree measures of all five angles?

The sum of two numbers is 12 and their difference is 18 what are the two numbers

Rewrite so the subject can be y in the formula d=m-y/y+n