__________ is defined as the sum of observations divided by the number of observations.
A
Harmonic Mean
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B
Geometric Mean
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C
Arithmetic Mean
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D
All of above
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Solution
The correct option is C Arithmetic Mean Arithmetic mean refers to the average amount in a
given group of data. It is defined as the summation of all the observation is the data which is divided by the number of observations in the data. The formula of to calculate arithmetic mean is sd/N where sd is the summation of all the observations in the data and N is the number of observations in the data.