The middle number in a set of data is called the

The middle number in a set of data is called the

• A. Range
• B. Mean
• C. Mode
• D. Median

Answer: (D)

The middle number in a set of data is called the median. To find it, arrange the numbers from smallest to largest and pick the value in the center. If there are an even number of values, the median is the average of the two middle numbers. The median represents a central value that splits the data into two halves and is less affected by extreme outliers than the mean, which is why it’s often a better measure of a typical value when data are skewed. For contrast, the range is the difference between the largest and smallest values, which tells you how spread out the data are; the mean is the sum of all values divided by how many values there are, giving an overall average; and the mode is the value that appears most often. For example, with 2, 3, 5, 7, 9, the middle value is 5, so the median is 5. If you have 1, 2, 2, 3, 50, the middle value is 2, showing how the median stays representative despite an outlier like 50.

The middle number in a set of data is called the median. To find it, arrange the numbers from smallest to largest and pick the value in the center. If there are an even number of values, the median is the average of the two middle numbers. The median represents a central value that splits the data into two halves and is less affected by extreme outliers than the mean, which is why it’s often a better measure of a typical value when data are skewed.

For contrast, the range is the difference between the largest and smallest values, which tells you how spread out the data are; the mean is the sum of all values divided by how many values there are, giving an overall average; and the mode is the value that appears most often. For example, with 2, 3, 5, 7, 9, the middle value is 5, so the median is 5. If you have 1, 2, 2, 3, 50, the middle value is 2, showing how the median stays representative despite an outlier like 50.