The median of a set of numbers is the middle number when the numbers are listed in order from least to greatest. If there is an even number of values, the median is the average of the two middle numbers.

To find the median of a set of numbers:

- Arrange the numbers in ascending order.
- If the total number of values is odd, the median is the middle number.
- If the total number of values is even, the median is the average of the two middle numbers.

Find the median of the following set of numbers: 4, 7, 2, 9, 5, 8, 3

First, arrange the numbers in ascending order: 2, 3, 4, 5, 7, 8, 9

Since there are 7 numbers, which is odd, the median is the fourth number, which is 5.

Here are some key points to remember when working with the median:

- The median is not affected by extreme values, unlike the mean.
- If the number of values is odd, the median is the middle number.
- If the number of values is even, the median is the average of the two middle numbers.

Practice finding the median of different sets of numbers to become more comfortable with the concept.

Remember that the median helps us understand the middle value of a set of numbers and is a useful measure of central tendency.

Study GuideOrganizing Data Worksheet/Answer key

Organizing Data Worksheet/Answer key

Organizing Data Worksheet/Answer key

Organizing Data

Data Analysis and Probability (NCTM)

Select and use appropriate statistical methods to analyze data.

Find, use, and interpret measures of center and spread, including mean and interquartile range.