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 q ?
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.
If the frequency of each class is doubled, then what would be the mean?
Questions Asked from Statistics (Marks 2.5)
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