Thread: Another Normal Distribution Problem

82.9% of the total area is to the left of Z. What is Z?

Can anyone help?

Empirical Rule?

Pr(Z < 0) = 0.50

Pr(Z < 1) = 0.84

We're in the neighborhood. Not too much more looking produces:

Pr(Z < 0.829) = 0.950 <== Who-hoo!! That's an important one!