A study of college football players' involvement with sports agents interviews a sample of college sports information directors. One question concerns revamping rules concerning timing and level of player-agent contact. Here is a two-way table of the results:

What is the expected number of NCAA Div. I sports information directors who have some interest in revamping the rules?
A) 42
B) 120
C) 39.76
D) 110
E) 3.55

Question

A study of college football players' involvement with sports agents interviews a sample of college sports information directors. One question concerns revamping rules concerning timing and level of player-agent contact. Here is a two-way table of the results:

What is the expected number of NCAA Div. I sports information directors who have some interest in revamping the rules?

What is the expected number of NCAA Div. I sports information directors who have some interest in revamping the rules?
A) 42 
B) 120 
C) 39.76 
D) 110 
E) 3.55

Quizplus · Accepted Answer

To find the expected number of NCAA Div. I sports information directors who have some interest in revamping the rules, we need to calculate the expected value of the "Interested in revamping" category. To do this, we need to multiply each row total by the corresponding column total, then divide by the grand total.

(41/100) x (194/525) x 525 = 39.76

Therefore, the expected number of NCAA Div. I sports information directors who have some interest in revamping the rules is 39.76, which is closest to choice C (39.76).

A Study of College Football Players' Involvement with Sports Agents