What is mean

Dear student,

Mean for a given set of data is the average calculated for a given set of numbers or data. It is also known as arithmetic mean or the average of a given set of data. This is referred to as the total of all the values of data provided divided by the number of data values in total for any given set of data.It also measures the central tendency of data.

M e a n = \frac{S u m o f O b s e r v a t i o n s}{T o t a l n u m b e r o f o b s e r v a t i o n s}

For example,

Find the mean for the given set of random data : 3, 5, 9, 17, 19
$M e a n = \frac{3 + 5 + 9 + 17 + 19}{5} = \frac{53}{5} = 10.6$

Regards

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