multiplication
theorem P(AB) equals:
►P(A)
P(B)
►P(A) +
P(B)
►P(A) *
P(B|A) (Page 159)
►P(B\A)
* P(B)
The
probability of drawing ‘White’ ball from a bag containing 4 red , 8 black and 3
white ball is
►0
►3/15
►1/12
►1/2
If A and B are mutually exclusive events then P(A or B) equals:
►P(A)
+ P(B) - P(A and B)
►P(A)
* P(B)
►P(A) + P(B) (Page 155)
►P(A|B) + P(B|A)
The
simultaneous occurrence of two events is called
►Prior
probability
►Subjective
probability not confirmed
►Conditional
probability
Which
one of the following measurement does not divide a set of observations
into equal parts?
► Quartiles
► Deciles
► Percentiles
► Standard deviations
The
height of student is 60 inch. This is an example of……?
►Continues data
►Qualitative
data
►Categorical
data
►Discrete
data
Which
of the statement is true regarding a sample?
►It is a part of population (Page 13)
►It
must contain at least five observations
►It
refers to descriptive statistics
►It
produces true value
The
probability of drawing a ‘jack card ‘from 52 playing cards is:
· 
· 
· 
If all
the values fall on the same straight line and the line has a positive slope then
what will be the value of the correlation coefficient ‘r’:
► 0 ≤ r ≤ 1
► r ≥ 0
► r
= +1
► r=-1
What is the Standard
Deviation of 7, 7, 7, 7, 7, 7, 7
►49
►1
►0 Standard
deviation will always be zero if all the values in data are same
►7
10!
=………….
► 362880
► 3628800
► 362280
► 362800
If a
player well shuffles the pack of 52 playing cards, then the probability of a
black card from 52 playing cards is:
►1/52
►
13/52
►4/52
►26/52
In a
regression line Y= a + bX, the value of the correlation coefficient will be
zero if:
►Intercept
a ≠ 0
►Intercept a = 0 (correct)
►Slope b = 0
►Slope b ≠ 0
The
probability of drawing a ‘jack card ‘from 52 playing cards is:
►1/52
►4/52
►13/52
►26/52
Which
dispersion is used to compare variation of two series?
►
C.V. (Page 93)
► Q.D.
► M.D.
► S.D.
The
probability of drawing a ‘jack card ‘from 52 playing cards is:
►1/52
►13/52
►4/52 rep
►26/52
In a
regression line Y= a + bX, the value of the correlation coefficient will be
zero if:
► Intercept a = 0 rep
►
Intercept a ≠ 0
► Slope
b = 0
► Slope
b ≠ 0
Which
one of the following measurement does not divide a set of observations
into equal parts?
►
Quartiles
►
Deciles
►
Percentiles
► Standard deviations rep
If all
the values fall on the same straight line and the line has a positive slope
then what will be the value of the correlation coefficient ‘r’:
► 0 ≤ r ≤ 1
► r ≥ 0
► r
= +1 (Page 129)
► r=-1
If a=4 b=2 estimate
line (i.e y=a+bx) and independent variable has value 3 the value of dependent
variable
►
6
► 9
► 10 4+2(3)=10
► 11
The
number of ways in which 4 books can be arranged
► 4
► 6
► 12
► 24 (Page 142)
The
simultaneous occurrence of two events is called
►
Descriptive probability
►
Subjective probability
►
Conditional probability
► Joint probability
When
coin tossed we get only
►1 outcome
►2
outcomes
►3
outcomes
►4
outcomes
When
mean is 25 and S.D is 5 then CV is
► 100%
► 25%
► 20%
► 10%
A set
that contains all possible outcomes of a system is known as
►
Finite Set
► Infinite Set
► Universal Set (Page 134)
► No of these
If X and Y are
independent, then Var(X-Y) is equal to:
► Var(X)Var(Y) Var(X)Var(Y)
►
Var(X Y)
►
► Zero
A coin
is tossed 3 times then, the number of sample points ii the sample space is:
3
8
6
4
What is
the difference between a permutation and a combination:
►In a permutation order is important and in a
combination it is not
►In a
permutation order is not important and in a combination it is important
►A
combination is based on the classical definition of probability
►A
permutation is based on the classical definition of probability
What we consider in
simple correlation analysis:
►Several
independent variables
►Strength of the association between two
variables (Page 128)
►Intercept
with the X-axis
►Intercept
with the Y-axis
If all the values
fall on the same straight line and the line has a positive slope then what will
be the value of the correlation coefficient ‘r’:
►0 = r = 1
►r = 0
►r = +1 (rep)
►r=-1
The
dispersion which is calculated from all observed values is:
►Standard deviation (Page 87)
►Quartile
deviation
►Rang
►Coefficient
of Rang
For any
number k ……….1, at least 1 – 1/k2 of the data-values fall within k standard
deviations of the mean:
►Greater than 1 (Page 97)
►Less
than 1
►Greater
or equal to 1
►Less
or equal to 1
If Mean
= 25 & S.D is 5 then C.V is
►100%
►25%
►20%
(Page 93)rep
►10%
When E
is an impossible event,then P(E) is:
►0 (Page 146)
►0.5
►1
►2
When
two dice are rolled, the numbers of possible sample points are:
►6
►12
►24
►36
(6*6=36)
The correlation of
coefficient lies between :
►0 to 1
► 0 to
►- 1 to +1 (Page 128)
►1
to
How
many elements are in the sample space of rolling one die:
►6
►12
►24
►36
When
two coins are tossed the probability of at most one head is:
►1/4
►2/4
►3/4
►4/4
If A and B are mutually exclusive events then P(A or B) equals:
►P(A)
+ P(B) - P(A and B)
►P(A)
* P(B)
►P(A) + P(B)
(Page 155)
►P(A|B) + P(B|A)
Positive square root
of variance of a distribution is:
►Rang
►Quartile
deviation
►Standard deviation (Page 91)
The
probability of drawing a king of spade from a pack of 52 cards is:
►1/4
►1/13
►1/26
►1/52
5C5
Equals :
►1
►5
►10
►25
we toss a coin , we
get only:
►1 outcome
►2
outcomes
►3
outcomes
►4
outcomes
Standard
deviation is affected by the change of________:
►Origin
& scale
►Origin
only
►Scale only Click here for detail
►Not
origin & scale
A die
is rolled. What is the probability that the number rolled is greater than 2 and
even:
►1/2
►1/3
►2/3 (greater than 2 = 3,4,5,6 = 4
numbers , 4/6=2/3)
►5/6
The probability of
drawing any one spade card is:
►1/52
►4/52
►13/52
►52/52
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