find the mean of 21, 31, 12, 9, 12
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Answered by
2
Answer:
81/5=16.2 is answer ✌✌
Answered by
1
Answer:
Mean=Sum of observation/Total number of observations
Step-by-step explanation:
Sum of observations=21+31+12+9+12=85
Total number of observations=5
So mean=85/5=17
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