What term describes the average of a group of numbers?

What term describes the average of a group of numbers?

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

Answer: (A)

This question tests central tendency and how we describe the typical value in a set of numbers. The term that describes the average of a group of numbers is the mean. To find it, add all the numbers together and then divide by how many numbers there are. For example, with 2, 5, and 9, the mean is (2 + 5 + 9) ÷ 3 = 16 ÷ 3 ≈ 5.33. The mean represents a balance point of the data, but it can be influenced by extremely high or low values. The other descriptors are different: the median is the middle value when the numbers are arranged in order, the mode is the value that appears most frequently, and the range is the difference between the largest and smallest values.

This question tests central tendency and how we describe the typical value in a set of numbers. The term that describes the average of a group of numbers is the mean. To find it, add all the numbers together and then divide by how many numbers there are. For example, with 2, 5, and 9, the mean is (2 + 5 + 9) ÷ 3 = 16 ÷ 3 ≈ 5.33. The mean represents a balance point of the data, but it can be influenced by extremely high or low values. The other descriptors are different: the median is the middle value when the numbers are arranged in order, the mode is the value that appears most frequently, and the range is the difference between the largest and smallest values.