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Degree of Correlation ship 1. Perfect Correlation: When changes in two related variables are exactly proportional there is perfect correlation between them. In case
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
Z-Test Prof. Fisher has given a method of testing the significance of the correlation coefficient in small samples. According to this method the coefficient of correlation
scope of operation research
Question : (a) (i) What do you understand by the term "operations research"? (ii) Discuss three common operations research models. (b) Self-service at the university c
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
Ask queA manufacturing firm has discontinued production of a certain unprofitable product line. This created considerable excess production capacity. Management is considering to d
. 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
A company uses 4 pounds of resource 1 to make each unit of X1 and 3 pounds of resource 1 to make each unit of X2. There are only 150 pounds of resource 1 available. Which of the fo
The scientific method in O R study generally involves the followings three phases: 1. Judgment phase, 2. Research phase 3. Action phase
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