Mean, Median, Mode, and Range (Introduction) for 4th Grade
Mean is the balance point, median is the middle value in order, mode is the most frequent, and range is the spread. Each answers a different question about the same data. The examples below calculate all four, with practice problems and answers.
DETAILED EXPLANATION
Mean is the average (sum ÷ count). Median is the middle value when data are in order. Mode is the value that appears most often. Range is the difference between the greatest and least values.
WORKED EXAMPLES WITH STEP BY STEP SOLUTIONS
Example 1
Find the range of 3, 7, 5, 9, 4.
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Solutions:
Step 1: Apply the concept from the lesson above.
Step 2: Carry out the operation or reasoning.
Answer: Greatest 9, least 3. Range = 9 − 3 = 6.
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