1) Spelling test scores: 13, 17, 12, 19, 20, 13, 11
- Mean: (13 + 17 + 12 + 19 + 20 + 13 + 11) / 7 = 105 / 7 = 15
- Median: Arrange in order: 11, 12, 13, 13, 17, 19, 20. Middle value is 13.
- Mode: 13 (appears twice, more than any other number)
- Range: 20 - 11 = 9
Mean: 15, Median: 13, Mode: 13, Range: 9
2) Fishing catches: Captain 15, Sally 12, Quadra 18, Tyger 8, Frazer 22, Quadra 18
Data: 15, 12, 18, 8, 22, 18
- Mean: (15 + 12 + 18 + 8 + 22 + 18) / 6 = 93 / 6 = 15.5
- Median: Arrange in order: 8, 12, 15, 18, 18, 22. Middle values are 15 and 18, so (15 + 18) / 2 = 16.5
- Mode: 18 (appears twice)
- Range: 22 - 8 = 14
Mean: 15.5, Median: 16.5, Mode: 18, Range: 14
3) Number of laps: 15, 12, 8, 26, 14, 11, 8, 15, 9, 10, 15
- Mean: (15 + 12 + 8 + 26 + 14 + 11 + 8 + 15 + 9 + 10 + 15) / 11 = 143 / 11 = 13
- Median: Arrange in order: 8, 8, 9, 10, 11, 12, 14, 15, 15, 15, 26. Middle value is 12.
- Mode: 15 (appears three times)
- Range: 26 - 8 = 18
Mean: 13, Median: 12, Mode: 15, Range: 18
4) Ice-cream sales:
- Week 1: 87, 75, 95, 102, 109, 61, 85
- Week 2: 77, 103, 102, 79, 82, 63, 70
Combined data: 87, 75, 95, 102, 109, 61, 85, 77, 103, 102, 79, 82, 63, 70
- Mean: (87 + 75 + 95 + 102 + 109 + 61 + 85 + 77 + 103 + 102 + 79 + 82 + 63 + 70) / 14 = 1208 / 14 ≈ 86.29
- Median: Arrange in order: 61, 63, 70, 75, 77, 79, 82, 85, 87, 95, 102, 102, 103, 109. Middle values are 82 and 85, so (82 + 85) / 2 = 83.5
- Mode: 102 (appears twice)
- Range: 109 - 61 = 48
Mean: 86.29, Median: 83.5, Mode: 102, Range: 48
Parent Tip: Review the logic above to help your child master the concept of mean median mode range word problems worksheet.
