What is the Arithmetic Mean of the following data 3,6,9,12,15,?

What is the Arithmetic Mean of the following data 3,6,9,12,15,?

Explanation

total of the observation is 5 (3,6,9,12,15)

Formula: 

Mean= sum of observation/total no. of observation 

          =3+6+9+12+15/5

          = 45/5

          =5 

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agm.04.03.23