There are 3 white marbles and 7 blue marbles in a bag. Jamie will randomly pick two marbles out of the bag without replacing the

Question

3 years ago

14

first marble chosen. What is the probability of Jamie's picking 2 white marbles?
A) 1/15

B) 1/18

C) 1/20

D) 1/7

2 answers:

Softa [21] · Answer 1 · 2022-09-26T18:17:46+03:00

Softa [21]3 years ago

7 0

Answer:

A) 1/15

Step-by-step explanation:

The probability of picking a white marble is 3/10. Then 2 of the remaining 9 marbles are white, so the probability of picking one is 2/9.

The joint probability is (3/10)·(2/9) = 6/90 = 1/15

ELEN [110] · Answer 2 · 2022-09-26T16:04:49+03:00

ELEN [110]3 years ago

5 0

Answer:

1/7 is the probability hope this helps