Final answer:
To calculate the probability that the blonde girl won the prize, we'd need the number of blonde girls and total participants. Without this data, we cannot provide a specific reduced fraction. Assuming hypothetical numbers, we'd use the standard probability formula for calculation.
Step-by-step explanation:
The question seems to be missing the necessary information to directly calculate the probability that the blonde girl won the prize. To answer this, one would need the total number of participants and the number of those who were blonde. Assuming we had the required information, we'd use the formula for probability:
Probability of an event = (Number of favorable outcomes) / (Total number of outcomes)
If we had, for example, 5 blonde girls out of 20 total participants: The probability the blonde girl won would be 5/20, which reduces to 1/4 when expressed in reduced fractional form.
We may also refer to concepts such as conditional probability, combinatorics, or binomial distribution in more complex scenarios, but without additional context, we cannot proceed.