1
NDA Mathematics 13 April 2025
MCQ (Single Correct Answer)
+2.5
-0.833
Change Language

Consider the following for the four (04) items that follow:
The frequency distribution of height of students of a class is given below:

Height (in cm Number of Students
160-162 12
162-164 15
164-166 24
166-168 13

 

The height which occurs most frequently in the class is
A
163.5 cm 
B
163.9 cm 
C
164.5 cm 
D
164.9 cm 
2
NDA Mathematics 13 April 2025
MCQ (Single Correct Answer)
+2.5
-0.833
Change Language

Consider the following for the four (04) items that follow:
The frequency distribution of height of students of a class is given below:

Height (in cm Number of Students
160-162 12
162-164 15
164-166 24
166-168 13

 

The most appropriate graphical representation of the given frequency distribution is
A
bar chart
B
percentage bar chart
C
histogram
D
pie chart
3
NDA Mathematics 13 April 2025
MCQ (Single Correct Answer)
+2.5
-0.833
Change Language
Consider the following for the two (02) items that follow:
The sum and the sum of squares of the observations corresponding to length X (in cm) and weight Y (in gm) of 50 tropical tubers are given as $\Sigma X = 200, \Sigma Y = 250, \Sigma X^2 = 900$ and $\Sigma Y^2 = 1400$
Which one of the following is correct?
A
Variance (X) > Variance (Y)
B
Variance (X) < Variance (Y)
C
Variance (X) = Variance (Y)
D
Cannot be determined from the given data
4
NDA Mathematics 13 April 2025
MCQ (Single Correct Answer)
+2.5
-0.833
Change Language
Consider the following for the two (02) items that follow:
The sum and the sum of squares of the observations corresponding to length X (in cm) and weight Y (in gm) of 50 tropical tubers are given as $\Sigma X = 200$, \Sigma Y = 250, \Sigma X^2 = 900 and \Sigma Y^2 = 1400$
Which one of the following statements is correct?
A
Coefficient of variation of X is strictly more than coefficient of variation of Y.
B
Coefficient of variation of X is strictly less than coefficient of variation of Y
C
Coefficient of variation of X is same as coefficient of variation of Y.
D
Coefficient of variation cannot be determined from the given data.
EXAM MAP