Question

There are 3 red, 1 blue and 2 yellow marbles in a bag. Once a marble is selected it is replaced. Find P(3 red marbles)

Answer 1

Answer:

1/5

Step-by-step explanation:

This are the possible outcome

RRR BBB YYY

RBY RYB RYY RBB

BRY BYR BRR BYY

YRB YBR YRR YBB. Total 15

R red

B blue

Y yellow

Probability = numbers of required outcome/number of possible outcome

No of possible outcome =15

No of required outcome = 3 red marbles

So

3/15

P(3red marbles) =1/5