Refer to Exercise 4.111.
In E 4.111
From the National Football League (NFL) Web site, in the New England Patriots Roster, we obtained information on the weights and years of experience for the players on that team, as of September 26, 2013. The following contingency table provides a cross-classification of those data.

a. For a randomly selected player on the New England Patriots, describe the events Y3, W2, and (W1 & Y2) in words.
b. Compute the probability of each event in part (a). Interpret your answers in terms of percentages.
c. Construct a joint probability distribution similar to that shown in Table 4.7 on page 182.
d. Verify that the sum of each row and column of joint probabilities equals the marginal probability in that row or column.

Transcribed Image Text:

Years of experience Rookie 1-5 6-10 Over 10 Y3 Y4 Total Under 200 3 0 E 200-300 21 2 41 Over 300 4 13 Total 18 4) 12 62