Question

Of 500 new electronic products, 280 were intended for people over the age of 16, and 320 used a rechargeable battery. Of those products with a rechargeable battery, 150 were intended for those under the age of 16. What is the probability that a new electronic product is intended for someone over the age of 16 or uses a rechargeable battery?

choices:
430/500 = 0.86
450/500 = 0.9
110/500 = 0.22
280/500 = 0.56

Answer 1

D. 280/500 = 0.56

Explanation:

280 are intended for people over 16 and 320 use a rechargeable battery.

320-150 = 170 (intended for those under the age of 16)

The answer would be D because you need to take the highest number of products (280) that would satisfy the requirements.

Answer 2

450/500 = 0.9sorry if it's wrong

Explanation: