Practice Objectives
- Demonstrate the ability to find the mean (average) for a group of numbers
- Demonstrate the ability to find the median for a group of numbers
- Demonstrate the ability to find the mode for a group of numbers
Practice Finding the Mean, Median, & Mode for a Group of Numbers
Instructions:
Answer 7/10 questions correctly to pass.
Problem:
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Finding the Mean (Average):
- Find the sum of all numbers in the group
- Divide the sum by the number (quantity) of numbers in the group
Finding the Median of a Group of Numbers:
- Arrange the numbers from least to greatest
- If the number (quantity) of numbers in the group (n) is:
- odd » the median is the middle number
- position (n + 1)/2
- even » the median is the average of the two middle numbers
- Find the average of the numbers in positions (n + 1)/2 ± 1/2
Finding the Mode:
- It is helpful to arrange the numbers from least to greatest
- It is helpful to create a table to organize each number and its frequency
- The mode is the number or numbers that occur most often
Step-by-Step:
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