Question

A bag contains 3 yellow tennis balls and 4 green tennis balls. Gordy will select one tennis ball, put it in his pocket, and then select a second tennis ball.


Which expression gives the probability that he will select two green tennis balls?

A. 4/7 . 3/6


B. 4/7 . 4/6

C. 4/7 . 3/7


D. 4/7 . 4/7

Answer 1

probability that first ball is green is 4 / 7 as there are a total of 7 balls and 4 of these are green

now he has 6 balls left after putting the first (green) ball in his pocket

so what do you think is the probability that he picks a green one from these 6 balls?

Answer 2

how many of the 6 balls are green?

Answer 3

3 ?

Answer 4

right - so what is the chance of picking a green form these 6 ?

Answer 5

3/6

Answer 6

correct - so now you have it

Answer 7

I got the answer, Thank you :)

Answer 8

yw