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Here is a list of the types of averages used in statistics also called or measures of central tendency. We start with the common type. The most common types of averages are the mean, median, and mode. Mean The mean is found by adding all the numbers in a list and then divide by how […]

Summation notation is used to denote the sum of values. Suppose you have a sample consisting of the ages of 5 students in a middle school. Suppose the ages of these five students are 12, 14, 15, 10,  and 9 The variable age of a student can be denoted by x You could write the […]