Understanding Box-and-Whisker Plots in Data Analysis

Box-and-Whisker plots visually represent data distribution, including the minimum, maximum, median, and quartiles. By following specific steps, such as organizing data from least to greatest and identifying key values, anyone can create these plots to gain insights into the data spread.

• Data Analysis
• Box-and-Whisker Plots
• Statistics
• Data Visualization

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Uploaded on Oct 04, 2024 | 0 Views

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1. 12.4 Box-and-Whisker Plots

2. Definitions: Minimum: Smallest number in the set of data (ordered least to greatest) Maximum: Largest number in the set of data (ordered least to greatest) Median: Middle number in the set of data (ordered least to greatest) 1stQuartile: The middle number of the lower half of the data (ordered least to greatest) 3rdQuartile: The middle number of the upper half of the data (ordered least to greatest)

3. When making a Box-and-Whisker Plot: Put numbers in order from least to greatest Find the minimum, maximum, and median Find the 1stquartile and the 3rd quartile Represent the data in box-and- whisker format

4. Example 1 Make a box-and-whisker plot to represent the set of data: 125 80 140 135 126 140 350 75

5. Example 1 Work 125 80 140 135 126 140 350 75

6. Example 2 Make a box-and-whisker plot to represent the set of data: 95 85 75 85 65 60 100 105 75 85 75

7. Example 2 Work 95 85 75 85 65 60 100 105 75 85 75