- Mean, Median, and Mode
- Home
- Mode of a Data Set
- Finding the Mode and Range of a Data Set
- Finding the Mode and Range from a Line Plot
- Mean of a Data Set
- Understanding the Mean Graphically: Two bars
- Understanding the Mean Graphically: Four or more bars
- Finding the Mean of a Symmetric Distribution
- Computations Involving the Mean, Sample Size, and Sum of a Data Set
- Finding the Value for a New Score that will yield a Given Mean
- Mean and Median of a Data Set
- How Changing a Value Affects the Mean and Median
- Finding Outliers in a Data Set
- Choosing the Best Measure to Describe Data
Finding the Mode and Range of a Data Set
Range is a measure of variance of the data. The measure of centre gives an average value of the data set while the range gives a measure of how far the data is spread out.
Rules to find the range of a data set
We look at the numbers of the data set and find the smallest and the largest numbers among them.
The difference between the largest number and the smallest number gives the range of the data.
Find the mode and range of the set of numbers given below −
14, 29, 14, 36, 78
Solution
Step 1:
The number that repeats most is 14; So Mode = 14.
Step 2:
Range = greatest number – smallest number
= 78 – 14 = 64.
Step 3:
Mode = 14; Range = 64.
Find the mode and range of the set of numbers given below −
22, 59, 53, 85, 53, 34, 17
Solution
Step 1:
The number that repeats most is 53; So Mode = 53.
Step 2:
Range = greatest number – smallest number
= 85 – 17 = 68.
Step 3:
Mode = 53; Range = 68.