The harmonic mean is an average which is useful for sets of numbers which are defined in relation to some unit, as in the case of speed (i.e., distance per unit of time): x ¯ = n ( ∑ i = 1 n 1 x i ) − 1 …

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Example: What is the mean of 2, 4, 6, 8 and 10? Solution: First, add all the numbers. 2 + 4 + 6 + 8 + 10 = 30 Now divide by 5 (total number of observations). Mean = 30/5 = 6 In the case of a discrete …

A guide to the mean, median and mode and which of these measures of central tendency you should use for different types of variable and with skewed distributions.

The mean (aka average) summarizes a dataset with a single number representing the center point or typical value. Learn how to find the mean.

Mean The arithmetic mean of a set of numbers is the most common form of average. There are a number of different types of mean in statistics such as the geometric mean and harmonic mean, but …

Mean, in mathematics, a quantity that has a value intermediate between those of the extreme members of some set. Several kinds of means exist, and the method of calculating a mean depends upon the …