The mean of the first 9 calls is 5 minutes. The next call takes 10 minutes. What is the mean of the first 10 calls?

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Mean and mode are two types of averages found in data handling. The three averages are:  mean, mode and median - which can be used in different situations. An average is a typical or representative value of a data set. Look at how the data is spread out or distributed around some sort of average.


The mean of the first 9 calls is 5 minutes. The next call takes 10 minutes. What is the mean of the first 10 calls?





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