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Statistics Ics Part 1 Online Test MCQs With Answers
Question # 1
F(-
∞
) is always equal to
Choose an answer
Zero
One
Two
Negative one
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Question # 2
A fair coin is tossed four times the probability of getting four heads is
Choose an answer
1/4
1/2
4/6
1
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Question # 3
if X and Y are independent random varaibesl the S.D. (X-Y) is equal to
Choose an answer
Var (X) - var (Y)
Var (X) + Var (Y)
E(X-Y)2
E(X + Y)2
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Question # 4
Histogramis a graph of.
Choose an answer
Qualitative data
Time sereis
Ogive
Frequency distribution
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Question # 5
The distribution is symmetrical if the moment coefficient of skewense b1 is.
Choose an answer
Negative
Postive
3
0
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Question # 6
The probability of drawing two acea from apack of 52 cards with replacement is.
Choose an answer
1/169
1/10
1/4
1/256
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Question # 7
The sum of absolute deviations is a minimum if these deviations are taken from the
Choose an answer
Mean
Mode
Median
All of these
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Question # 8
Teh suitable average for the qualitative data is.
Choose an answer
Mean
Mode
weighted mean
Geometric mean
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Question # 9
If y =-7x then E(y) = ...............
Choose an answer
E(x)
-7X
-7E(X)
Zero
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Question # 10
A four die is rolled three times. the probabiliyt of getting three area is.
Choose an answer
1/4
1/6
1/216
1/27
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Question # 11
The relative frequency multiplied by 100 is called.
Choose an answer
Cumulative frequency
Bivariate frequency
Percentage frequency
Sample frequency
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Question # 12
Two events A and B are mutually exclusive if P(A
∪
B) =
Choose an answer
P(A) - P(B)
P(A) + P(B)
P(A)P(B) - P(A
∪
B)
P(A) + P(B) - P(A
∪
B)
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Question # 13
Probility density function is the probebilyt function of.............. random variable.
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Discrete
Qualitative
Continuous
None
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Question # 14
P(A or B) = P (A∪B) = P(A) +P(B) then A and B are.
Choose an answer
Mutually exclusive
Independent events
Not mutually exclusive
Dependent
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Question # 15
Y
3
+y
4
+......+y
15
=
Choose an answer
Σ
15
i=1
Y
1
Σ
15
i=3
Y
2
15
Σ
i=3
Y
i
15
Σ
i=3
Y
i
2
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Question # 16
A binomial random variable can assume the values
Choose an answer
1,2......n
0,1,2......00
0,1,2......n
2,4,6,8,10
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Question # 17
First central moment is always.
Choose an answer
0
1
-1
2
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Question # 18
A fair coin is tossed four times the probability of getting four heads is
Choose an answer
1/4
1/2
1/16
1
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