What is the Arithmetic Mean of the following data 3, 6, 9, 12, 15?
- 7
- 9
- 12
- 8
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
= 9
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