Statistics MCQS for NTS Test
The probability of an always lies between:
1 and 0
0 and ?
0 and 1
-1 and 1
In normal distribution P (m-d s? x ? m+ s)
0.6827
None
0.9545
0.9973
Standard deviation is calculated from harmonic mean:
Never
Always
None of them
Often
The most commonly used mathematical method for measuring trend is
Moving average method
Free- hand curve method
Method of least squares
Semi-average method
In a normal distribution S2 = 5 them m4 is
75
0
25
Keyboard mouse and scanner are the ……..devices
Input
None of these
Output
Logical
In which sense Statistics means numerical data:
Singular
Plural
None of these
Both
The sum of values divided by their numbers is called
Mean
G.M
Mode
Median
How many purpose are served by index numbers?
3
4
2
5
The best fitting trend is one for which the sum of squares of errors is:
Negative
Least
Maximum
Zero
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