if the mean of a data is 316 and the sum of its observation is 3792 find the number of observations in the data.
1 answer:
Answer:
12
Step-by-step explanation:
mean is calculated as
mean = 
Here mean = 316 and sum = 3792 , count n is required to be found, so
= 316 ( multiply both sides by n )
3792 = 316n ( divide both sides by 316 )
12 = n
There are 12 observations in the data
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