The range is a simple way to understand how spread out data is. It’s important for A-Level students to know about this.
The range tells us the difference between the highest and lowest numbers in a set of data.
How to Find the Range:
To find the range, use this formula:
Range = Highest Value - Lowest Value
Let’s See an Example:
If we have the numbers {3, 7, 1, 5}, we find the range like this:
7 (highest) - 1 (lowest) = 6
This means the numbers in this set vary by 6 units.
Knowing the range is useful because it shows how much the data can change. This helps students get a better understanding of the data when looking at other important measures like the mean (average), median (middle value), and mode (most common value).
The range is a simple way to understand how spread out data is. It’s important for A-Level students to know about this.
The range tells us the difference between the highest and lowest numbers in a set of data.
How to Find the Range:
To find the range, use this formula:
Range = Highest Value - Lowest Value
Let’s See an Example:
If we have the numbers {3, 7, 1, 5}, we find the range like this:
7 (highest) - 1 (lowest) = 6
This means the numbers in this set vary by 6 units.
Knowing the range is useful because it shows how much the data can change. This helps students get a better understanding of the data when looking at other important measures like the mean (average), median (middle value), and mode (most common value).