Assignment 3 - Probability Statements

Just as the Excel download file for assignments 2 to 4 automatically creates the graphs needed for assignment 2, it also automatically calculates the answers to the items below.

a) Call a score that is greater than the mean a "high" score. What is the probability of drawing a high score from your set of scores?

b) What is the probability of drawing an outlier from your set of scores? (Again, as in assign. #1, define 'outlier' using 2 standard deviations."

c) How many scores of your set are both early (in the first half of the data according to time) and high?

d) What is the probability of drawing a score from your set of scores that is both early and high? (The only reliable way to answer this question is by careful counting. Using the count from question c, what is the probability?