1
NDA Mathematics 13 April 2025
MCQ (Single Correct Answer)
+2.5
-0.833
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 |
What is the height of the class?
2
NDA Mathematics 13 April 2025
MCQ (Single Correct Answer)
+2.5
-0.833
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
3
NDA Mathematics 13 April 2025
MCQ (Single Correct Answer)
+2.5
-0.833
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
4
NDA Mathematics 13 April 2025
MCQ (Single Correct Answer)
+2.5
-0.833
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 $\Sigma Y^2 = 1400$
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?
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