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NAT I General Science Statistics MCQs With Answers
Question # 1
Var (2x
+
3) is
Choose an answer
5 var (x)
12 var (x)
4 Var (x)
None of these
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Question # 2
Movement in secular trend
Choose an answer
Smooth
Steady
Regular
All
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Question # 3
For the standardized normal variate P(0Σ z Σ1) =...............
Choose an answer
0.34135
0.47725
0.49867
0.33725
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Question # 4
The shape of the C
2
distribution is
Choose an answer
Symmetrical
Negatively skewed
Positively skewed
Mesokurtic
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Question # 5
Standard deviation is calculated from harmonic mean:
Choose an answer
Always
Never
Often
None of them
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Question # 6
In which sense Statistics means numerical data:
Choose an answer
Singular
Plural
Both
None of these
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Question # 7
Link relatives can be obtained by dividing P
n
by:
Choose an answer
P
o
q
o
P
n
P
n-1
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Question # 8
The value of correlation co-efficient lies between
Choose an answer
0 to +1
-1 to 0
-0.5 to +0.5
-1 to +1
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Question # 9
If var (x) =5, var(y) =10, then var (2x + y) is:
Choose an answer
10
15
30
25
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Question # 10
The complete list of all sampling units
Choose an answer
Sample
Sampling frame
Sample design
Sampling error
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Question # 11
Variance of b,b,b,b is:
Choose an answer
b
4b
Zero
None of these
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