Transportation officials tell us that 80% of drivers wear seat belts while driving. What is the probability of observing 518 or fewer drivers wearing seat belts in a sample of 700 drivers?
A) 0.8
B) approximately 0
C) 0.2
D) approximately 1

Question

Quizplus · Accepted Answer

The probability of observing 518 or fewer drivers wearing seat belts in a sample of 700, when 80% is the expected rate, is very low. This is because 518 is significantly lower than the expected 560 (80% of 700), making the probability approximately 0.

Transportation Officials Tell Us That 80% of Drivers Wear Seat