The range is an important concept in statistics. It helps us understand how spread out the numbers are in a set of data. We find the range by looking at the difference between the highest and lowest numbers.

You can use this simple formula to find the range:

Range = Maximum Value - Minimum Value

Let’s look at an example with some test scores: 56, 75, 84, 92, and 45.

1. First, find the Highest and Lowest Scores:

   • Highest Score (Maximum) = 92
   • Lowest Score (Minimum) = 45

2. Now, calculate the Range:

   • Range = 92 - 45 = 47

This tells us that there is a spread of 47 points among these scores. It shows how much the scores vary.

Why Does the Range Matter?

Knowing the range helps us understand the data better. Here are a few reasons why it is useful:

• Understanding Variation: A bigger range means more difference among the numbers, while a smaller range means the numbers are more similar.
• Finding Outliers: If the range is very big or very small compared to other groups of data, it could mean there are some unusual scores.

In short, the range is a helpful tool that gives us a glimpse into how the data is spread out!