There are 3 red marbles, 5 green marbles, and 2 blue marbles in a bag. Which of the following are true?

The probability of randomly drawing either a red marble or a green marble is 80%.

The probability of randomly drawing a red marble and then a green marble is 1/6.

The probability of not drawing a blue marble is 20%.

The probability of drawing a green marble is the same as the probability of drawing either a red or a blue marble.

Question

Mathematics

Kevin Larson

28 December, 18:55

There are 3 red marbles, 5 green marbles, and 2 blue marbles in a bag. Which of the following are true?

The probability of randomly drawing either a red marble or a green marble is 80%.

The probability of randomly drawing a red marble and then a green marble is 1/6.

The probability of not drawing a blue marble is 20%.

The probability of drawing a green marble is the same as the probability of drawing either a red or a blue marble.

+3

Answers (1)

Know the Answer?

Ivy Pittman · Answer 1

Number one two and four are true

1. 3+5=8 and 8 is 80% of ten

2. the prob of drawing a red marble in the first go is 3/10 x 5/9 (for the probabilty of drawing a green one in the second go) = 1/6

3. The probability OF drawing a blue marble is 20% (hence false)

4. 3+2 = 5, the same amount of red and blue marbles together as of green ones