The average, also known as the mean, is a fundamental concept in statistics and arithmetic. It provides a measure of the “central tendency” or “typical value” of a list of numbers. To calculate the average of a list of numbers, you sum up (add together) all the numbers, then divide by the count of numbers.
For example, consider the list of numbers (2, 4, 6, 8, 10). The average of this list is calculated by adding up all the numbers (2 + 4 + 6 + 8 + 10 = 30) and then dividing by the count of numbers in the set (5).
Here’s a representation of the average calculation:
So the average of the list (2, 4, 6, 8, 10) is equal to 6.
The mean of a data set is the average of all the values in the data set. It is calculated by adding all the numbers in a list and dividing by the count of numbers in the list.
The median of a data set is the middle value of the sorted data.
The mode of a data set is the most commonly occurring value in the data set.