The average monthly production of a factory for the first 8 months is 2,500 units, and for the next 4 months the production was 1,200 units. The average monthly production of the year will be_____________? A. 2066.55 units B. 5031.10…

Find the median of the following datA. 160, 180, 200, 280, 300, 320, 400? A. 140 B. 300 C. 180D. 280

In a frequency distribution the last cumulative frequency is 300, Median shall lie in____________? A. 140th item B. 130th item C. 160th itemD. 150th item

Given the N values in a series, the geometric mean is______________? A. The third root of the product of N values B. The square root of the product of N values C. The fourth root of the product of N…

The sum of squared deviation is least from_________________? A. MedianB. Mean C. Mode D. Standard Deviation

The average of first n natural numbers is_______________? A. n+12 B. n2 C. All of the above D. None of these

The mean of a constant “b” is_________________? A. ZeroB. b C. None

Sum of deviations will be zero if it is taken from_________________? A. Mean B. Mode C. Median D. Standard Deviation

The mean of 10 numbers is 9, then sum of these numbers will be__________________? A. 9 B. 0.9 C. 70D 90

For a certain distribution if ∑(x−2)=18,∑(x−24)=0,∑(x−28)=−24) then arithmetic mean is_______________? A. 21B. 24 C. 28 D. 0