1
NDA Mathematics 10 April 2022
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language
The frequency curve (assuming unimodal) corresponding to the data obtained in an experiment is skewed to the left. What conclusion can be drawn from the curve ?
A
Mean > Median > Mode
B
Mean > Mode > Median
C
Median > Mean > Mode
D
Mode > Median > Mean
2
NDA Mathematics 10 April 2022
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language
The variance of five positive observations is 3.6. If four of the observations are 2, 2, 4, 5 then what is the remaining observation ?
A
4
B
5
C
7
D
9
3
NDA Mathematics 10 April 2022
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language
What is the coefficient of mean deviation of 21, 34, 23, 39, 26, 37, 40, 20, 33, 27 (taken from mean)?
A
0.11
B
0.22
C
0.33
D
0.44
4
NDA Mathematics 10 April 2022
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language

Consider the following for the next three (03) items that follow :

The algebraic sum of the deviations of a set of values x1, x2, x3, ⋯, xn measured from 100 is -20 and the algebraic sum of the deviations of the same set of values measured from 92 is 140.

What is the mean of the values?
A
91
B
96
C
98
D
99
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