Question

3)Three balls are chosen at random from a box containing 5 balls and all the three are
found to be red in colour. Find the probability that all the five balls in the box are red in
colour.​

Answer 1

Answer:

3/5

Step-by-step explanation:

probability=favourable outcome/total outcomes

probability= 3/5

Answer 2

The probability of having all 5 balls is 0.

1) Three balls have already been taken out from the box containing 5 balls.

2) These balls would not affect the outcome of the box now, since they are out of outcomes.

3) Now box has only 2 remaining balls.

4) Favorable outcome:- both balls are red in color

Possible outcomes:- Balls can be of any possible color, hence there are infinitely many possible outcomes.

5) Since, the possible outcomes are infinity, the probability of getting any favorable outcome would be 0.