So far this season, the university's football team has executed 155 running plays, 143 passing plays, and 19 "trick" plays. What is the probability that the team will not execute
A trick play?
A) 0.06
B) 0.064
C) 0.94
D) 0.936

Question

Quizplus · Accepted Answer

The probability of not executing a trick play is the number of non-trick plays divided by the total number of plays. There are 155 + 143 = 298 non-trick plays, and 155 + 143 + 19 = 317 total plays. So the probability of not executing a trick play is 298/317 = 0.94.

So Far This Season, the University's Football Team Has Executed