1
NDA Mathematics 10 April 2022
MCQ (Single Correct Answer)
+2.5
-0.83
Consider the following frequency distribution for the next three (03) items follow :
| Class | 0-20 | 20-40 | 40-60 | 60-80 | 80-100 |
| Frequency | 17 | p + q | 32 | p - 3q | 19 |
The total frequency is 120. The mean is 50.
What is the value of p ?
2
NDA Mathematics 10 April 2022
MCQ (Single Correct Answer)
+2.5
-0.83
Consider the following frequency distribution for the next three (03) items follow :
| Class | 0-20 | 20-40 | 40-60 | 60-80 | 80-100 |
| Frequency | 17 | p + q | 32 | p - 3q | 19 |
The total frequency is 120. The mean is 50.
What is the value of q ?
3
NDA Mathematics 10 April 2022
MCQ (Single Correct Answer)
+2.5
-0.83
Consider the following frequency distribution for the next three (03) items follow :
| Class | 0-20 | 20-40 | 40-60 | 60-80 | 80-100 |
| Frequency | 17 | p + q | 32 | p - 3q | 19 |
The total frequency is 120. The mean is 50.
If the frequency of each class is doubled, then what would be the mean?
4
NDA Mathematics 14 November 2021
MCQ (Single Correct Answer)
+2.5
-0.83
When the measure of central tendency is available in the form of mean, which one of the following is the most reliable and accurate measure of variability?
Questions Asked from Statistics (Marks 2.5)
Number in Brackets after Paper Indicates No. of Questions
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