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what is the formula of mean in maths. The formula is given by. We also know it as the mean absolute deviation.
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Updated February 11 2017 Infoplease Staff The arithmetic mean also called the average of a series of quantities is obtained by finding the sum of the quantities and dividing it by the number of quantities. To calculate the mean simply add all of your numbers together. X i a deviation of ith class.
X n are the values of variable x then the arithmetic mean usually denoted by x or E x is given by x x 1 x 2 x 3.
Deviation just means how far from the normal. The arithmetic mean of a set of values is the ratio of their sum to the total number of values in the set. If x 1 x 2. It is found by adding all the numbers in the data set and dividing it by total number of numbers present in data set.
