1. Calculate the mean (average) score:
- Add all the scores: 105 + 61 + 57 + 79 + 78 + 54 + 74 + 71 + 74 + 62 + 70 + 56 + 62 + 78 + 51 = 972
- Divide by the number of scores (15): 972 / 15 = 64.8
- The mean score is 64.8.
2. Find the median (middle score):
- Arrange the scores in ascending order: 51, 54, 56, 57, 61, 62, 62, 70, 71, 74, 74, 78, 78, 79, 105
- The middle score (8th score) is 70.
- The median score is 70.
3. Identify the mode (most common score):
- The score that appears most frequently is 74 (appears twice).
- The mode score is 74.
4. Calculate the range:
- Subtract the smallest score from the largest score: 105 - 51 = 54
- The range of the scores is 54.
Parent Tip: Review the logic above to help your child master the concept of mode median mean and range worksheet.