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Chapter 20.1
Median and mode
What You'll Learn
Identify the median as the middle value in an ordered data set
Calculate the median by arranging data numerically and crossing off endpoints
Find the median with even data sets by averaging the two middle values
Recognize the mode as the most frequently occurring value in a set
Distinguish between data sets with one mode, multiple modes, or no mode
What You'll Practice
1
Finding median and mode from lists of numbers
2
Calculating median from frequency tables showing product sales
3
Determining median when given an even number of data values
4
Solving problems where median is known and missing data must be found
Why This Matters
Median and mode are essential statistics you'll use throughout math and science to analyze real data. Whether you're interpreting test scores, sales figures, or survey results, these measures help you understand what's typical in a data set and make informed decisions.
Before You Start — Make Sure You Can:
This Unit Includes
5 Video lessons
Practice exercises
Skills
Median
Mode
Data Analysis
Statistics
Frequency Tables
Numerical Order
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