There are three main types of averages: mean, median, and mode. Each type gives a different way to describe the central or typical value in a set of data. They’re used in statistics to summarize information and make it easier to understand patterns or trends in numbers.
| Front | Range |
| Definition | Definition: The difference between the largest and smallest values in a dataset.Calculation: Subtract the smallest number in the dataset from the largest number. |
| Example | \[\text{For } 3, 4, 8 \text{ the range is } 8 - 3 = 5\] |
| Front | Mode |
| Definition | Definition: The number that appears most frequently.Calculation: Count how often each number appears, and the number with the highest frequency is the mode. |
| Example | \[\text{For } 3, 4, 4, 8 \text{ the mode is } 4\] |
| Front | Median |
| Definition | Definition: The middle value when the numbers are arranged in order (smallest to largest).Calculation: If there’s an odd number of values, the middle one is the median. If there’s an even number of values, the median is the average of the two middle values. |
| Example | \[\text{For } 3, 4, 8 \text{ the median is } 4\]\[\text{For } 2, 3, 5, 7 \text{ the median is } \frac{3 + 5}{2} = 4\] |