Given the contingency table shown here,if a survey participant is selected at random,what is the probability he/she is an undergrad who favors the change to a quarter system?
A) .270
B) .135
C) .338
D) .756

Question

Given the contingency table shown here,if a survey participant is selected at random,what is the probability he/she is an undergrad who favors the change to a quarter system? 
A) .270 
B) .135 
C) .338 
D) .756

Quizplus · Accepted Answer

The probability that a participant is an undergrad who favors the change to a quarter system is calculated by taking the number of undergrads who favor the change (27) and dividing it by the total sample size (200). Therefore, the probability is 27/200 or 0.135, which corresponds to option B.

Given the Contingency Table Shown Here,if a Survey Participant Is