Top 50+ Solved BCA- Mathematics MCQ Questions Answer
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
a. Skewness
b. Symmetry
c. Central tendency
d. Dispersion
Q. 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
Q. The measure of central tendency listed below is:
a. The raw score
b. The mean
c. The range
d. Standard deviation
Q. 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
Q. 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
Q. The sum of the squares fo the deviations about mean is:
a. Zero
b. Maximum
c. Minimum
d. All of the above
Q. 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
Q. If X1, X2, X3, ... Xn, be n observations having arithmetic mean and if Y =4X± 2, then is equal to:
a. 4X
b. 4
c. 4 ± 2
d. 4 ± 2
Q. If the arithmetic mean of 20 values is 10, then sum of these 20 values is:
a. 10
b. 20
c. 200
d. 20 + 10
Q. Ten families have an average of 2 boys. How many boys do they have together?
a. 2
b. 10
c. 12
d. 20
Q. If the arithmetic mean of the two numbers X1 and X2 is 5 if X1=3, then X2 is:
a. 3
b. 5
c. 7
d. 10
Q. The lower and upper quartiles of a symmetrical distribution are 40 and 60 respectively. The value of median is:
a. 40
b. 50
c. 60
d. (60 – 40) / 2
Q. Suitable average for averaging the shoe sizes for children is
a. Mean
b. Mode
c. Median
d. Geometric mean