Answer:
66.67% relative frequency probability that she will make her next penalty kick
Step-by-step explanation:
The relative frequency probability that she will make her next penalty kick is:
The proportion of penalty kicks that she has made, that is, the number of penalty kicks made divided by the number of penalty kicks taken.
In this question:
12 penalty kicks made
18 penalty kicks taken
12/18 = 0.6667
66.67% relative frequency probability that she will make her next penalty kicks
