Question

In a bag, there are two blue tokens, three red tokens, six yellow tokens, and four green tokens. Stephen will perform random trials of drawing a token and replacing it into the bag. Which of the following is a good prediction for the number of times a red or green token will be drawn in 300 trials? a.85 b.181 c.119 d.138

Answer 1

two blue tokens
three red tokens
six yellow tokens
four green tokens

2 + 3 + 6 + 4 = 15

He has a 4/15 chance to pull out a green token.
He has a 3/15 chance to pull out a red token.
All together, he has a 7/15 chance of getting red or green.
What do you think will happen if he does it 300 times?

Answer 2

This is just a guess, but:

7 times 300 = 2100
2100 divided y 15 = 140
So I guess it may be D.

Answer 3

140 so d.138

Answer 4

thank you

Answer 5

No prob.