Answer:
5/168
Step-by-step explanation:
Probability is the likelihood or chance that an event will occur.
Probability = Expected outcome/Total outcome.
According to the question, if the bag contains 5 red raffle tickets, 7 blue raffle tickets and 2 green raffle tickets, the total number of ticket is given as:
5+7+2 = 14tickets
The total outcome = 14.
If Jackie selects a green ticket on her first two selections, the probability of selecting a green twice from the bag and replacing it will be 2/14×2/14 = 4/48.
Note that the total number of ticket remains complete each time she selects since the ticket was always REPLACED.
If Jackie picks a red on her third selection, the probability of picking a red will be 5/14.
The probability that she selects a green ticket on her first two selections and a red ticket on her third selection will then be:
= 4/48 × 5/14
= 1/12×5/14
= 5/168
