More Classes
5th Class
6th Class
7th Class
8th Class
9th Class
10th Class
11th Class
12th Class
NAT I
NAT II
CSS
IQ
General Knowledge
MDCAT
ECAT
GAT General
GAT Subject
Other Links
Go to Home
Online Tests
Statistics Ics Part 1 Chapter 7 Online Test MCQs With Answers
Question # 1
If a is a constant then E(a) is equal to
Choose an answer
a
Square of a
Zero
2a
Previous
Skip
Next
Question # 2
The probability of getting two red balls with replacement from a bag containing 4 red, 3 white and 3 black balls is.
Choose an answer
4/25
1/25
9/100
2/25
Previous
Skip
Next
Question # 3
the collection of all possible outcome of a random experimnet is called.
Choose an answer
Sample point
Sure event
sample event
simple event
Previous
Skip
Next
Question # 4
Which of the following is suitable for discrete probability distribution.
Choose an answer
Frequency polygon
Probability
Ogive
Histogram
Previous
Skip
Next
Question # 5
When three coins are tossed simulatneously, P(3 heads) is.
Choose an answer
3/8
1/2
1/8
1/4
Previous
Skip
Next
Question # 6
The probability of an impossible event is.
Choose an answer
Positive
Zero
Negative
1
Previous
Skip
Next
Question # 7
For two independent random variables, Var(x) = 14 and Var(Y ) = 5, then var (X-y) is equal to.
Choose an answer
9
70
19
None of these
Previous
Skip
Next
Question # 8
When two dice are rolled, the numebr of possible sample points is.
Choose an answer
6
12
36
48
Previous
Skip
Next
Question # 9
E(x) = Σxf(x) if it ________ absolutely.
Choose an answer
Equal
Converges
Discrete
None of these
Previous
Skip
Next
Question # 10
The range of probability is between
Choose an answer
0 to 2
-1 to +1
0 to 8
0 to 1
Previous
Skip
Next
Question # 11
The properties of discrete probability distribution are:
Choose an answer
Σp (x) = 1 and Σx. (x) = 1
ΣP (x)= 1 and Σx. P
ΣP(x) = 1 and 0 < P(x) ≤ 1
All of these above
Previous
Skip
Next
Question # 12
Coefficient of variation (C.V) is given below
Choose an answer
Mean /S.D x10
Mean/S.D x 100
S.D/Mean x 100
S.D/ Mean
Previous
Skip
Next
Question # 13
When two coins are tossed simultaneously, P (one head ) is.
Choose an answer
1/2
1/4
3/4
1.0
Previous
Skip
Next
Question # 14
Var (KY) = ......................
Choose an answer
KY
K
2
Var(Y)
K
2
Var (Y)
None of these
Previous
Skip
Next
Question # 15
Var (3x+2)
Choose an answer
3Var(x) + 2
9Var(x) +2
Var (x) + 0
3Var (X)
Previous
Skip
Next
Question # 16
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
Previous
Skip
Next
Question # 17
E(y-
μ
) is equal to
Choose an answer
E(y)
μ
zero
y-
μ
Previous
Skip
Next
Back