Question

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 is drawn.

A. What is the probability of selecting a purple marble and then a white marble?

B. What is the probability of selecting two white marbles?

C. Is there a greater chance of selecting two white marbles in a row or two purple marbles in a row? Show your Work.

Answer 1

@rebeccaxhawaii @ganeshie8 @KamiBug @Cas_fangirl_14 @SuperGirl22

Answer 2

@supersmart1001

Answer 3

a
2+7 = 9 (the total number of marbles)
7/9 * 2/8 = 14/72 and reduce

Answer 4

b
2/9 * 1/8 = 2/72 and reduce

Answer 5

c
since (b) already shows the probability of choosing 2 white in a row you just need to work out the purple.
7/9 * 6/8 = 42/72 and reduce

Answer 6

@GM100299 thanks but I already figured it out but ill still medal and fan you