1
NDA Mathematics 16 April 2023
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language
A bivariate data set contains only two points (-1, 1) and (3, 2). What will be the line of regression of y on x ?
A
x - 4y + 5 = 0 
B
3x + 2y - 1 = 0
C
x + 4y + 1 = 0
D
5x - 4y + 1 = 0
2
NDA Mathematics 16 April 2023
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language

A die is thrown 10 times and obtained the following outputs :

1, 2, 1, 1, 2, 1, 4, 6, 5, 4

 What will be the mode of data so obtained ?  

A
6
B
4
C
2
D
1
3
NDA Mathematics 16 April 2023
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language

Consider the following frequency distribution :

x 1 2 3 5
f 4 6 9 7


What is the value of median of the distribution ?  

A
1
B
2
C
3
D
3.5
4
NDA Mathematics 16 April 2023
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language
For data -1, 1, 4, 3, 8, 12, 17, 19, 9, 11; if M is the median of first 5 observations and N is the median of last five observations, then what is the value of 4M - N ? 
A
7
B
4
C
1
D
0
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