Question

Suppose only 40% of all drivers in Florida regularly wear a seatbelt. A random sample of 500 drivers is selected. What is the probability that a. Between 170 and 220 (inclusive) of the drivers in the sample regularly wear a seatbelt? b. Fewer than 175 of those in the sample regularly wear a seatbelt?

Answer 1

The answer is: a. Between 170 and 220 (inclusive) of the drivers in the sample regularly wear a seatbelt ?.

Step-by-step explanation:

If we have 500 drivers, of which 40% = 0.40, wear the belt, multiplying 500 x 0.40 = 200 drivers who wear the belt.

The answer is: a. Between 170 and 220 (inclusive) of the drivers in the sample regularly wear a seatbelt ?.