The average is 60.
Why do we calculate the average?
We calculate averages due to the fact they may be a totally useful manner to give a huge quantity of information. as an alternative to getting to trawl through masses or lots of portions of statistics, we've one quantity that succinctly summarises the complete set. while there are some problems with averages, together with outliers showing an erroneous common, they're beneficial to evaluate records at a glance.
What is an average number?
In maths, the common fee in a set of numbers is the middle fee, calculated by dividing the whole of all the values by means of the range of values. while we want to find the common of a fixed of facts, we upload up all of the values after which divide this general by means of the number of values.
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