Question

Nicole missed the lesson on normal distribution and needs to do her homework. Explain to Nicole how to use the mean and standard deviation of a normal distribution to determine the top 5% of the population.

Answer 1

z = invNorm (.05) = 1.645. Then, 1.645 = x - u / a. solve for x.

Answer 2

wait how do u get 1.645 tho

Answer 3

Plug in 5%

Answer 4

inverse

Answer 5

ohh and can u explain the variables

Answer 6

substitute the mean (u) and standard deviation (a)

Answer 7

ok thanks! luv u1<3