Using excel use the NORM.S.DIST function on page 212 in your text. First, you need to compute the z-Scores for the raw scores given in a., b., c., and d., then use the NORM.S.DIST function to determine the probability value.

1.Questions 6a through 6d are based on a distribution of scores with X=75 and standard deviation =6.38. Draw a picture to help you see what's required.

a.What is the probability of a score falling between a raw score of 70 and 80?

b.What is the probability of a score falling between a raw score of 80?

c.What is the probability of a score falling between a raw score of 81 and 83?

d.What is the probability of a score falling between a raw score of 63?