Home Page

4 of 8

7
Correct Answer:- Option-A

http://192.168.1.6/psc/modules/marklist/answer_sheet/pr.

(Question4 1=In the simultaneous tossing of two perfect coins, the probability of having atleast one head is,

5

B:

©.
Del
Correct Answer:- Option-C

Question42:For two events ८1 , 02 if P(E) =

J then സേം
7
ष.
3

ए.

Correct Answer:- तकण
Pay

(Question4 3:1f P(A/B)=- en

and P( B/A):

is equal to

3

ಕ

೧
न ‏سام إن‎

றட
T 2

Correct Answer:- Option-A

Question 4=1f P(x) and Py (x) be the marginal probability functions of two independent discrete random variables X and Y, then their joint probability function P(x,y)=

Pua)
700

एः)

220)

10)

D:-None of these

Correct Answer:- Option-B

3

Question45:The function f(x) defined as f(x) ۲ ೫ 1.

isa possible!
JO சனங்க
Acdensity function
B-distribution function
वि
D:-none of these
Correct Answer: Option-A
(Question46:-For two random variables X and Y, the relation E(XY)=E(0E(Y) holds good
‘Acif X and Y are statistically independent.
Befor all X and ¥.
Cif X and ¥ are identical.
D:-none of these.
Correct Answer- Option-A
Question47Var(2X 8) if Var(X)=1 is
५5
83
८4
D:-none of these.
Correct Answer: Option-C
Question48-E(X— 4)” is minimum when
‏ايم‎
‎Bek>EQ)
‎೦೫00.
‎D:-none of these
Correct Answer: Option-C
Question49-The height of persons in a country is a random variable of the type
) variable
Be-discrete random variable
Coneither discrete nor continuous random variable
D:-continuow as well as discrete random variable
Correct Answer: Option-A
Question50=IFX is a random variable, E(e" ) is known as
‘A-characteristic function
B-moment generating function
probability generating function
D:-none of these
Correct Answer:- Option-B

Question 1=The mean and variance of a binomial distribution are 8 and 4 respectively. Then P(X=1) is equal to

5

05/25/2015 03:06 PM