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Math for Computing Practice Test
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Avg score: 85% • Most missed: “The sum of the squares fo the deviations about mean is:”
Math for Computing Practice Test
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25 Questions

1. While computing the arithmetic mean of a frequency distribution, the each value of a class is considered equal to:
2. Ten families have an average of 2 boys. How many boys do they have together?
3. Any measure indicating the centre of a set of data, arranged in an increasing or decreasing order of magnitude, is called a measure of
4. In operations research, the are prepared for situations.
5. If in a discrete series 75% values are greater than 50, then:
6. The total of all the observations divided by the number of observations is called:
7. If the arithmetic mean of 20 values is 10, then sum of these 20 values is:
8. What have been constructed from OR problems and methods for solving the models that are available in many cases?
9. Which of the following average cannot be calculated for the observations 2, 2, 4, 4, 6, 6, 8, 8, 10, 10 ?
10. If the arithmetic mean of the two numbers X1 and X2 is 5 if X1=3, then X2 is:
11. What is the objective function in linear programming problems?
12. Which technique is used in finding a solution for optimizing a given objective, such as profit maximization or cost reduction under certain constraints?
13. Scores that differ greatly from the measures of central tendency are called:
14. The sum of the squares fo the deviations about mean is:
15. The lower and upper quartiles of a symmetrical distribution are 40 and 60 respectively. The value of median is:
16. The main limitation of operations research is that it often ignores the human element in the production process.
17. The sum of the squares of the deviations of the values of a variable is least when the deviations are measured from
18. The measure of central tendency listed below is:
19. Operations research is the application of methods to arrive at the optimal solutions to the problems.
20. OR can evaluate only the effects of .
21. If X1, X2, X3, ... Xn, be n observations having arithmetic mean and if Y =4X ± 2, then is equal to:
22. For a certain distribution, if ∑(X -20) = 25, ∑(X- 25) =0, and ∑(X-35) = -25, then is equal to:
23. Feasible solution satisfies
24. By constructing models, the problems in libraries increase and cannot be solved.
25. Suitable average for averaging the shoe sizes for children is

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