Question

There are 6 blue marbles,7 black marbles,4 orange marbles,and 3 green marbles in a bag. Once a marble is drawn,it is REPLACED. Find the probability of the outcome


two orange marbles in a row
a)2/25
b)1
c)1/25
d)2/5

Answer 1

OK you tell me how many orange are there? How many total marbles are there?

Answer 2

4 orange
and
total
20

Answer 3

OK so on the first draw.. you put your hand in the bag and there are 4 orange out of the 20 = 4/20 reduced is 1/5

Then.. you put that orange marble back in the bag and you draw again.

At that moment there are 4 orange in the bag out of 20 total marbles.
So that time when you are it is still 4/20 which is 1/5

So the probablity = 1/5 * 1/5 = 1/25 So you would be able to draw an orange then an orange about 1 out of every 25 times.

Answer 4

Thanks