Questions 3a through 3d are based on a distribution of scores with¯X=75 and the standard deviation = 6.38. Draw a small picture to help you see what is required.
What is the probability of a score falling between a raw score of 70 and 80?
What is the probability of a score falling above a raw score of 80?
What is the probability of a score falling between a raw score of 81
What is the probability of a score falling below a raw score of 63?