If the mean of 12 observations is 36, then the sum of 12 observations is
(A) 12
(B) 432
(C) 36
(D) 144
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Answer:
42
Step-by-step explanation:
the mean of 12 observation is 36.
total = 36×12= 504
the sum of 12 observation is 504÷12=42
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