CPT - Quantitative Aptitude Sample Questions

Question 1: 
What is spurious correlation?

(a) It is a bad relation between two variables.
(b) It is very low correlation between two variables.
(c) It is the correlation between two variables having no causal relation.
(d) It is a negative correlation.
Ans. (c)
Question 2: 
In case of an even number of observations which of the following is median ?
(a) Any of the two middle-most value
(b) The simple average of these two middle values.
(c) The weighted average of these two middle values
(d) Any of these.
Ans. (b)
Question 3: 
Mode of 0,3,5,6,7,9,12,0,2 is
(a) 6
(b) 0
(c) 3
(d) 5
Ans. (b)
Question 4: 
The line x = a + by represents the regression equation of
(a) y on x
(b) x on y
(c) Both of above
(d) None of above
Ans. (b)
Question 5: 
The entire upper part of a table is known as
(a) Caption
(b) Stub
(c) Box head
(d) Body
Ans. (c)
Question 6: 
In case ‘The ages of husbands and wives’ correlation is ______.
(a) Positive
(b) Negative
(c) Zero
(d) One
Ans. (a)
Question 7: 
Ogive is a
(a) Line diagram
(b) Bar diagram
(c) Both
(d) None.
Ans. (a)
Question 8: 
When ‘p’ = 0.5, the binomial distribution is
(a) Asymmetrical
(b) Symmetrical
(c) Both of above
(d) None of above.
Ans. (b)
Question 9: 
______ always lies in between the arithmetic mean & mode.
(a) G.M.
(b) H.M.
(c) Median
(d) G.M. and H.M.
Ans. (c)
Question 10: 
______ always lies in between the arithmetic mean & mode.
(a) G.M.
(b) H.M.
(c) Median
(d) G.M. and H.M.
Ans. (c)
Question 11: 
If the AM and GM for two numbers are 6.50 and 6 respectively then the two numbers are
(a) 6 and 7
(b) 9 and 4
(c) 10 and 3
(d) 8 and 5
Ans. (b)
Question 12: 
If all the observations are increased by 10, then
(a) SD would be increased by 10
(b) Mean deviation would be increased by 10
(c) Quartile deviation would be increased by 10
(d) All these three remain unchanged.
Ans. (d)
Question 13: 
A______ distribution is a theoretical distribution that expresses the functional relation between each of the distinct values of the sample statistic and the corresponding probability.
(a) Normal
(b) Binomial
(c) Poisson
(d) Sampling
Ans. (d)
Question 14: 
The sum of square of first n natural number is __________.
(a) (n/ 2) (n +1)
(b) (n/ 6) (n +1) (2n +1)
(c) [(n/ 2) (n +1)]2
(d) None of above.
Ans. (b)
Question 15: 
A population comprises 5 members. The number of all possible samples of size 2 that can be drawn from it with replacement is
(a) 100
(b) 15
(c) 125
(d) 25
Ans. (c)