Explanation

• To find the mean of a set of numbers, you add up all the numbers and then divide by the total count of numbers.
• For the scores 1, 2, 3, 4, 5:
• (1 + 2 + 3 + 4 + 5) / 5 = 15 / 5 = 3
• So, the mean of the scores is 3.