# BCA- Mathematics Solved MCQs

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1.

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

A. Skewness
B. Symmetry
C. Central tendency
D. Dispersion
2.

## Scores that differ greatly from the measures of central tendency are called:

A. Raw scores
B. The best scores
C. Extreme scores
D. Z-scores
3.

## The measure of central tendency listed below is:

A. The raw score
B. The mean
C. The range
D. Standard deviation
4.

## The total of all the observations divided by the number of observations is called:

A. Arithmetic mean
B. Geometric mean
C. Median
D. Harmonic mean
5.

## While computing the arithmetic mean of a frequency distribution, the each value of a class is considered equal to:

A. Class mark
B. Lower limit
C. Upper limit
D. Lower class boundary
6.

## The sum of the squares fo the deviations about mean is:

A. Zero
B. Maximum
C. Minimum
D. All of the above
7.

A. 20
B. 25
C. -25
D. 35
8.

## The sum of the squares of the deviations of the values of a variable is least when the deviations are measured from

A. Harmonic mean
B. Geometric mean
C. Median
D. Arithmetic mean
9.

A. 4X
B. 4
C. 4 ± 2
D. 4 ± 2
10.

A. 0
B. 2
C. 100
D. 200
11.

A. 10
B. 20
C. 200
D. 20 + 10
12.

A. 2
B. 10
C. 12
D. 20
13.

A. 3
B. 5
C. 7
D. 10
14.

## We must arrange the data before calculating:

A. Mean
B. Median
C. Mode
D. Geometric mean
15.

A. 40
B. 50
C. 60
D. (60 – 40) / 2
16.

A. Q1 = 50
B. Q1 < 50
C. Q1 > 50
D. Q1 ≠ 50
17.

## Suitable average for averaging the shoe sizes for children is

A. Mean
B. Mode
C. Median
D. Geometric mean
18.

A. Mean
B. Median
C. Mode
D. Percentile
19.

## Which of the following average cannot be calculated for the observations 2, 2, 4, 4, 6, 6, 8, 8, 10, 10 ?

A. Mean
B. Median
C. Mode
D. All of the above
20.

## What have been constructed from OR problems and methods for solving the models that are available in many cases?

A. Scientific models
B. Algorithms
C. Mathematical models
D. None of these
21.

## Which of the following is not the phase of OR methodology?

A. Formulating a proble
B. Constructing a model
C. Establishing controls
D. Controlling the environment
22.

A. Economical
B. Scientific
C. Both A and B
D. Artistic
23.

## In operations research, the are prepared for situations.

A. Mathematical models
B. Physical models diagrammatic
C. Diagrammatic models
D. Both B and C
24.

## OR can evaluate only the effects of .

A. Personnel factors
B. Financial factors
C. Numeric and quantifiable factors
D. Both A and B
Answer» C. Numeric and quantifiable factors
25.

## Which technique is used in finding a solution for optimizing a given objective, such as profit maximization or cost reduction under certain constraints?

A. Qualing theory
B. Waiting Line
C. Both A and B
D. Linear Programming
26.

A. TRUE
B. FALSE
27.

## A solution can be extracted from a model either by

A. Conducting experiments on it
B. Mathematical analysis
C. Both A and B
D. Diversified Technique
Answer» C. Both A and B
28.

A. TRUE
B. FALSE
29.

## Feasible solution satisfies

A. Only constraints
B. only non- negative
C. Both A and B
D. A, B and optimal solution
Answer» C. Both A and B
30.

## What is the objective function in linear programming problems?

A. A constraint for available resource
B. An objective for research and development of a company
C. A linear function in an optimization problem
D. A set of non- negativity conditions
Answer» C. A linear function in an optimization problem