13
Mathematics
Statistics
792+ practice questions available
Sample Practice Questions
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1
Easy
If u_i = −1, a = 40, h = 10, then x_i is:
A20
B30
C40
D50
2
Medium
If CF values are 3, 10, 25, 38, 50, the frequency of the 3rd class is:
A25
B15
C13
D12
3
Medium
l=50, f_1=24, f_0=18, f_2=16, h=10. Mode is:
A52.86
B54.29
C55.71
D57.14
4
Medium
Median=50, mode=44. Mean is:
A51
B52
C53
D54
5
Easy
If value of each observation in a data is increased by 2, then median of the new data:
Aincreases by 2
Bincreases by 2n
Cremains same
Ddecreases by 2
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