Question

Please Help!!

Suppose you have a box with 3 blue marbles, 2 red marbles, and 4 yellow marbles. You are going to pull out one marble, record its color, put it back in the box and draw another marble. What is the probability of pulling out a red marble followed by a blue marble? Be sure to reduce your answers.

a. 6/81 = 2/27
b. 6/18 = 1/3
c. 5/9
d. 5/18

Answer 1

Which do you believe it could be?

Answer 2

Give me a second I have to find the answer I picked

Answer 3

These probabilities in the beginning could get tricky

Answer 4

Hmm I can't find it

Answer 5

P(red) = 2/9
P(blue) = 3/9

Answer 6

P(redblue) = (2/9)(3/9) = 6/81 = 2/27

Answer 7

The multiplication rule says we need to find P(red) P(blue).

P(red) = 2/9
P(blue) = 3/9

P(redblue) = (2/9)(3/9) = 6/81 = 2/27

Answer 8

Well, you first have to find the chance of getting a red marble, then multiply it by the chance of blue.
2/9*3/9=6/81=2/27

Answer 9

Well done all. :)