Question

Okay it will not go insane in here.



A jar contains 3 red, 4 blue, and 5 white marbles. What is the probability of drawing first a red and then, without replacement, a white marble?

5/44
5/48
31/44

Answer 1

\[Probability = \frac{\text{Number of Red Marbles}}{\text{Total Number of Marbles}} \times \frac{\text{Number of White Marbles}}{\text{Total Number of Marbles} - 1}\]

Answer 2

also, hypergeometric would work

Answer 3

3/12 * 5/12?

Answer 4

3/12x5/11 = 5/44

Answer 5

is it a proportion or multiply across?

Answer 6

ooh

Answer 7

Remember that it's the total number of marbles - 1

Answer 8

For the second fraction.

Answer 9

hyper might not work ... youve got more than 2 sets, i gotta read better

Answer 10

Thanks!

Answer 11

np :)

Answer 12

(3/12)x(5/11)= 5/44

Answer 13

now you both have medals :)