1
NDA Mathematics 14th September 2025
MCQ (Single Correct Answer)
+2.5
-0.833
Consider the following statements:
I. Mean and variance have the same unit of measurement.
II. Mean deviation and standard deviation have the same unit of measurement.
Which of the statements given above is/are correct?
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 |
What is the total number of students whose height is less than or equal to 165 cm?
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 |
What is the height of the class?
4
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
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