Question

Can someone help me? It's urgent and thank you!

Answer 1

option b : 15.2 %

Explanation:

5 Red , 4 Blue, 3 Yellow

Total balls = 12

`Probability \ of \ choosing \ red = (5C_1)/(12C_1) = (5)/(12)\\\\Probability \ of \ choosing \ blue \ without \ replacement = (4C_1)/(11C_1) = (4)/(11)\\\\Probability \ of \ red \ and \ then \ blue = (5)/(12) * (4)/(11) = 0.1515\\\\Probability \ in \ percentage = 0.1515 * 100 = 15.15 = 15.2 \%`

Answer 2

15.2%

Explanation:

There are 12 marbles in total and there are 5 red marbles, so the probability of getting a red marble is 5/12. There are now 11 marbles and there are 4 blue marbles. So the probability of getting a blue marble is 4/11.

You multiply these 2 values together.

5/12 * 4/11 = 20/132 = 0.1515

This is about 15.2%