Answer:
The probability that she will be a winner is:
Step-by-step explanation:
Consider the provided information.
A "trifecta" is a particular horse race in which you win by picking the "win," "place," and "show" horses (the first-, second-, and third-place winners), in their proper order.
Five horses of equal ability are entered in a trifecta race
First find the sample space as shown:
We have five horses for 1st place, if out of 5 horses one horse comes first then we have 4 horses for the second place.
If out of 4 horses one horse comes second then we have 3 horses for the third place.
Therefore the number of ways are:
There are 60 ways for a horse to come first, second or third.
The actual outcome of the race will only be one of these ways.
Hence, the probability that she will be a winner is: