1. **State the problem:** Henri conducted an experiment with 25 girls and 25 boys rating peanut butter on a scale from 1 to 10.
2. **Given data:**
- Girls: mean = 7, range = 9
- Boys: mean = 8, range = 5
3. **Analyze each statement:**
**A. On average, girls like peanut butter more than boys.**
- Girls' mean = 7
- Boys' mean = 8
- Since 8 > 7, boys on average like peanut butter more.
- So, statement A is false.
**B. The person who rated peanut butter the worst was a boy.**
- Range = max - min
- Girls' range = 9, so min rating for girls = max - 9
- Since scale max is 10, min for girls = 10 - 9 = 1
- Boys' range = 5, so min rating for boys = max - 5
- Max for boys can be at most 10, so min for boys = 10 - 5 = 5
- The worst rating overall is the minimum rating, which is 1 by a girl.
- So, statement B is false.
**C. Girls varied more than boys in how they liked peanut butter.**
- Variation can be measured by range.
- Girls' range = 9
- Boys' range = 5
- Since 9 > 5, girls varied more.
- So, statement C is true.
**D. Half of the boys rated peanut butter a 9 or 10.**
- No information about median or distribution is given.
- Cannot conclude this from mean and range alone.
- So, statement D cannot be confirmed.
**Final answer:** Statement C is true.
Peanut Butter Preference 0D39C5
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