Jim decides to find a sample of 50 students (n = 50) in his high school. He finds a sample mean of 48.7 gallons. He sees that this is lower than the average, but Jim is interested in determining how rare this sample is, given the nationwide average. You can help him determine this by calculating the following probability: What is the probability of Jim collecting a sample mean from those 50 students that is less than or equal to 48.7 gallons?