A random sample of 100 students is taken at LearnAll University and it's found that their average GPA is 3.1. If this informatio
2 answers:
You might be interested in
25 = 5*5 and 9 = 3*3, which we can exploit to write
so that this expression is actually a difference of squares. We can factorize this to get
and given that , we divide both sides by this to get