Chapter 5, Problem 5.8P

$\boxed{SOC}$ On the scale mentioned in problem 5.7, if a score of 40 or more is considered “highly prejudiced.” what is the probability that a person selected at random will have a score in that range?

5.7 $\boxed{SOC}$ A scale measuring prejudice has been administered to a large sample of respondents. The distribution of scores is approximately normal, with a mean of 31 and a standard deviation of 5. What percentage of the sample had scores

a. below 20? __________

b. below 40? ________

c. between 30 and 40? ____________

d. between 35 and 45? ___________

e. above 25? ___________

f. above 35? __________