1. **Problem Statement:** Calculate the mean of the quiz scores for Bee. 2. **Formula for Mean:** $$\text{Mean} = \frac{\text{Sum of all scores}}{\text{Number of scores}}$$ 3. **Step-by-step Calculation:** - List of scores: 88, 78, 56, 23, 38, 81, 64, 77, 49, 80, 93, 31, 77, 51, 49, 20, 16, 10, 12, 15, 72, 61, 90, 19, 71, 60, 28, 100 - Count the number of scores: $28$ - Sum the scores: $$88 + 78 + 56 + 23 + 38 + 81 + 64 + 77 + 49 + 80 + 93 + 31 + 77 + 51 + 49 + 20 + 16 + 10 + 12 + 15 + 72 + 61 + 90 + 19 + 71 + 60 + 28 + 100 = 1565$$ - Calculate mean: $$\text{Mean} = \frac{1565}{28} \approx 55.89$$ 4. **Explanation:** The mean is the average score, found by adding all scores and dividing by the total number of scores. Here, the average quiz score for Bee is approximately 55.89. Final answer: **Mean = 55.89**