Statistics question.

Question

I'm having a bit of trouble with this question. So I know that I need to find the z-score, but after that i'm not sure how to fer the exact percentage?

I know the formulas for the z-score and raw-score.

 

Problem:

 

Pat and Chris both took a spatial abilities test (mean = 80, std. dev. = 8). Pat scores a 76
and Chris scored a 94. What percent of individuals would score between Pat and Chris?

Answer 1

If you know how find their two z scores, do so.

Then look up the area (probabilities) associated with these z scores, in the Standard Normal Distribution table.

The difference gives you the probability of falling between these two scores; that's a decimal number & you just convert to percentage in the usual way.