Finding the range of numbers is the easiest topic in statistics.
In this lesson, you will learn the formula and the step-by-step method for finding the range of numbers.
BONUS: A link to practice questions on statistics is included at the end of this lesson.
Formula for finding the range of numbers
The formula for finding the range of numbers is the biggest number minus the smallest number.
Biggest –Smallest
Question on finding the range of numbers
Let’s take an example:
Question:
Find the range of the following numbers
15, 11, 8, 3, 13, 8, 5
STEP 1.
Pick out the biggest number
The biggest number in
15, 11, 8, 3, 13, 8, 5
= 15
STEP 2.
Pick out the smallest number
The smallest number in
15, 11, 8, 3, 13, 8, 5
= 3
STEP 3.
Transfer your answers from STEP 1 and 2 into the formula
Biggest–Smallest
15–3=12
Final answer
The range of the following numbers:
15, 11, 8, 21, 17, 3 , 8
= 12
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