Measures of Center
Measures of Center
Example
Find the mean, median, and mode of the following set of data:
2, 5, 6, 4, 8, 9, 8, 7, 5, 2, 2, 3, 10, 1, 4, 1, 10, 5, 2
Step 1. To find the mean, add the numbers together and divide by the number of data items.
Step 2. To find the median, put the numbers in increasing order and then find the middle.
1, 1, 2, 2, 2, 2, 3, 4, 4, 5, 5, 5, 6, 7, 8, 8, 9, 10, 10
Median = 5
Step 3. To find the mode, determine which number appears most often.
Two appears more than any other number.
Mode = 2