Question

Select all that apply.

There are 2 red marbles, 4 green marbles, and 4 blue marbles in a bag. Which of the following are true?

The probability of randomly drawing a red marble and then a green marble is 3/5.
The probability of drawing a blue marble is the same as drawing either a red or a green marble.
The probability of not drawing a blue marble is 60%.
The probability of randomly drawing either a red marble or a blue marble is 60%.

Answer 1

Answer: The probability of not drawing a blue marble is 60%

Step-by-step explanation: The probability of randomly drawing a red marble and then a green marble is not 3/5 because they don't add up to be that.

The probability of drawing a blue marble is the same as drawing a red or green marble is wrong as there are 4 blue marbles and only 2 red ones and 4 green ones.

The probability of not drawing a blue one is 60% is right as he has 4 blue ones and the green and red ones add up to be 60% and the 4 blue ones represent 40% and 40+60=100 therefore 100% which shows that the both colours rival the blue one representing 60%.