Mean, Median, Mode, Range
Mode: Occurs most often
Example:
42, 67, 94, 63, 12, 12, 78, 45, 23
The number that occurs most often is 12
The mode of the data is 12
Median: When the numbers are in order,
this number is in the middle
Example:
42, 67, 94, 63, 12, 12, 78, 45, 23
First, put the numbers in order: least to greatest
12, 12, 23, 42, 45, 63, 67, 78, 94
Then find the number in the middle
The Median of the data is 45
Mean: (average) Add up all numbers and
divide by the number of numbers
you added together
Example:
First, add up all of the numbers
42 + 67 + 94 + 63 + 12 + 12 + 78 + 45 + 23= 436
Then, count how many numbers you added up: 9
Now, divide by 436 by 9 (Use your calculator)
The mean of the data is 48.4
Range:
The largest number
minus the smallest number
Example:
12, 12, 23, 42, 45, 63, 67, 78, 94
The largest number: 94 and the smallest number: 12
94-12= 82
The range of the data is 82