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Uses of Mean Deviation Mean Deviation is rarely being used as a measure of dispersion. But due to easy and simplicity in calculation. It is rather useful in busin
Variables A concept which varies is variable. These can be different in quantitative values. For example, weight, height, income are examples of variables. Qualitative phenom
POLICIES, NORMS AND STANDARDS: Information source; building, an important function of the library, should be based on sound policies and programmes. The basic question of
Paired sample sign Test Paired samples sign test is applied to a situation where two sample are taken from two population which have continuous symmetrical distributi
Demerits a.It cannot be used in the case of bi variate distribution. b.If the numbers of items are greater than say 30, the calculation becomes tedious and requ
Question: Machine A costs Rs. 9000. Annual operating costs are Rs. 200 for the first year, and then increase by Rs. 2000 every year. Suppose that the machine has no resale valu
A paper mill produces two grades of paper viz., X and Y. Because of raw material restrictions, it cannot produce more than 400 tons of grade X paper and 300 tons of grade Y paper i
what are the characteristics of operation research
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STANDARA DEVIATION Standard deviation is the square root of the arithmetic average of squares of all the deviations from the mean. In short it may be defined as th
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