Final answer:
Emily can use the MEDIAN function to find the middle number in a set of 25 numbers.
Step-by-step explanation:
The statistical function that Emily can use to find the number that appears in the middle of a set of 25 numbers arranged in ascending order is the MEDIAN function.
For example, if Emily has the numbers 1, 3, 5, 7, and so on up to 49, she can use the MEDIAN function to find the number in the middle, which would be 25.
The MEDIAN function calculates the middle value of a data set, which is useful for finding the central tendency of a set of numbers.
Learn more about Using the MEDIAN function to find the middle number in a set