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The measures of central tendency and range for Sam's grades are as follows:

- **Mean**: 81.6
- **Median**: 81.0
- **Mode**: 76
- **Range**: 34 (difference between 97 and 63)

Now, let's analyze the options:

1. Mean > Mode (True: 81.6 > 76)
2. Mean < Median (False: 81.6 is greater than 81.0)
3. Mode > Median (False: 76 < 81.0)
4. Median = Mean (False: 81.0 is not equal to 81.6)

The correct statement is **Option 1: mean > mode**.

Would you like further details or have any questions?

### Related Questions:
1. How is the median calculated in a dataset?
2. What is the significance of the mode in this context?
3. How does the range help understand data variability?
4. How would the result change if an additional grade was added?
5. How is the relationship between mean, median, and mode used in skewness analysis?

**Tip**: The mean is sensitive to extreme values (outliers), while the median is more robust for skewed data.

Sam's grades on eleven chemistry tests were 90, 85, 76, 63, 94, 89, 81, 76, 78, 69, and 97. Which statement is true about the measures of central tendency?

Learn how to calculate the mean, median, mode, and range for a set of chemistry test scores: 90, 85, 76, 63, 94, 89, 81, 76, 78, 69, and 97. This problem involves understanding measures of central tendency and analyzing which statement about the data is correct.

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