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Q. If the arithmetic mean of the two numbers X1 and X2 is 5 if X1=3, then X2 is:

Q. Any measure indicating the centre of a set of data, arranged in an increasing or decreasing order of magnitude, is called a measure of

Q. Suitable average for averaging the shoe sizes for children is

Q. Feasible solution satisfies

Q. By constructing models, the problems in libraries increase and cannot be solved.

Q. The sum of the squares fo the deviations about mean is:

Q. Which of the following is not the phase of OR methodology?

Q. If in a discrete series 75% values are greater than 50, then:

Q. A measurement that corresponds to largest frequency in a set of data is called:

Q. OR can evaluate only the effects of .