Question

There are 5 red marbles, 8 blue marbles, and 12 green marbles in a bag.

A.What is the theoretical probability of randomly drawing either a red marble or a blue marble?
52%
20%
13%
32%

B.What is the theoretical probability of randomly drawing a red marble and then a green marble?

9.6%
68%
10%
17%

Answer 1

Part A = 52%

Explain: It’s asking for either a red or blue marble meaning you combine them together 5+8=13 divided by the total (25)
13/25=0.52 or 52%

Answer 2

20%

10%

Explanation:

if you add all the marbles you get 25 marbles

5/25 =20%