Mean, Median, Mode, and Range (Introduction) for 4th Grade
Mean, median, mode, and range describe a data set from four angles: the average, the middle, the most common, and the spread. Which one is most useful depends on whether the data has outliers. The examples below calculate each, with practice problems.
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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