A bag contains 8 black marbles and 20 yellow marbles. You reach into the bag and pull out a black marble. Then you reach into th

Question

Trava [24]

2 years ago

5

A bag contains 8 black marbles and 20 yellow marbles. You reach into the bag and pull out a black marble. Then you reach into th

e bag and pull out another marble. What is the probability that the second marble is yellow?

Mathematics

1 answer:

sveticcg [70] · Answer 1 · 2022-04-09T08:40:47+03:00

sveticcg [70]2 years ago

6 0

You have a bag containing 8 + 20 = 28 marbles.

After you pull a black marble you have 28 - 1 = 27 remaining marbles.

There are 20 yellow marbles in the bag.

The probability of pulling a yellow marble is now

$\frac{20}{27} which \: is \: approximately \: equal \: to \\ 74.07\%$