Finding The Range Of Numbers

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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