Final answer:
The relative frequency probability that the local weather forecast for tomorrow will be accurate is approximately 55.56%, calculated by dividing 15 by 27.
Step-by-step explanation:
The student is asking about the relative frequency probability that the local weather forecast for tomorrow will be accurate, given that it has been accurate for 15 of the past 27 days. To calculate this, we divide the number of days the forecast was accurate by the total number of days. This gives us:
Probability = Number of accurate forecasts / Total number of days = 15 / 27
Now, simplify the fraction:
Probability = 15 / 27 ≈ 0.5556
So, the relative frequency probability that the forecast for tomorrow will be accurate is approximately 55.56%.