Question

***CHECK MY ANSWERS***
A bag contains 2 white marbles and 7 purple marbles. Two marbles are drawn at random. One marble is drawn and not replaced. Then a second marble is drawn.
a. What is the probability of selecting a purple marble and then a white marble? 7/9*2/8=7/36

Answer 1

I'm pretty sure that's right.

Answer 2

@mtbender74

Answer 3

wait.

Answer 4

yeah. It's correct.

Answer 5

Can you check part b?

Answer 6

I'll try. :)

Answer 7

b. What is the probability of selecting two white marbles? 2/9*1/8=1/36

Answer 8

Good job! It's correct. :)