A survey of magazine subscribers shows that 19% rented a car during the past twelve months for business reasons, 52% rented a car during the last twelve months for personal reasons, and 3% rented a car during the last twelve months for both business and personal reasons.

a. What is the probability that a subscriber rented a car during the past 12 months for
business or personal reasons?
b. What is the probability that a subscriber did not rent a car during the past 12 months
for either business or personal reasons?

a. 0.68 or 68%

b. 0.32 or 32%

Step-by-step explanation:

a. The probability that a subscriber rented a car during the past 12 months for  business or personal reasons (P(R)) is given by the probability that they rented a car for business reasons (P(B)=0.19), added to the probability that they rented for personal reasons (P(P)=0.52), subtracted by the probability that they rented for both reasons (P(B and P) = 0.03):

b. The probability that a subscriber did not rent a car during the past 12 months  for either business or personal reasons (P(N)) is 100% minus the probability that they rented a car (P(R) = 0.68).

b. 24 mm

step-by-step explanation:

use the pythagorean theorem.

a^2 + b^2 = c^2

a^2 + 7^2 = 25^2

a^2 + 49 = 625

a^2 = 576

a = 24

answer: b. 24 mm

step-by-step explanation: