answer
dividing the number of successful throws by the total number of throws:
number of successful throws = 12
total number of throws = 18
probability of hitting the target on the next throw = number of successful throws : total number of throws:
probability of hitting the target on the next throw = 12 : 18
hitting the target on the next throw = 0.6667 or 67%
approximate probability of emily hitting the target on her next throw is 67%