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Grade 6 Math Lab: The Physics of Algebra FREE
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Mean, Median & Mode
Learning Objectives
- Calculate measures of center
- Choose the best measure
- Interpret data
Key Concepts
Mean
Sum of values ÷ number of values
Median
Middle value when data is ordered
Mode
Most frequent value
Theory
**Mean (Average):** Add all values, divide by count.
**Median:** Sort data, find the middle. If even count, average the two middle values.
**Mode:** Value that appears most often (can be more than one).
**When to use:**
- Mean: No extreme outliers
- Median: Skewed data or outliers
- Mode: Categorical data
Examples
Find mean, median, mode of: 2, 3, 3, 5, 7
Solution: Mean = 4, Median = 3, Mode = 3