Question

a bag has 5 red marbles, 6 blue marbles and 4 black marbles. What is the probability of picking a red marble, replacing it, and then picking a black marble?

Answer 1

P(R and B) = P(R) * P(B)

Answer 2

Can u find P(R) ?

Answer 3

uhh...i dont exactly know what P(R) is.

Answer 4

Probability of picking a red marble

Answer 5

5/15 so 1/3

Answer 6

Yes.
Now find P(B)

Answer 7

4/15

Answer 8

Great
Now, find P(R and B)

Answer 9

9/15...3/5

Answer 10

P(R and B) =P(R) * P(B) = 1/3 *4/15 =?

Answer 11

4/45 ?
i think

Answer 12

\[\checkmark\]

Answer 13

thank you so much!!

Answer 14

welcome