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Answer: Average is defined as the sum of observation divided by number of observation.
Average = (sum of observations)/(Number of observations)For example: suppose a man cover a certain distance at ‘x’ kmph and an equal distance at ‘y’ kmph. Thus the average speed during the whole journey is (2xy/(x+y)) kmph. The average can also refer to the median, mode and some other typical value. The common averages are the Pythagorean means which are.
Arithmetic mean,
Geometric mean,
Harmonic mean.
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