۳ھ
‎B:-'5/8"‏
‏38
‎D:-None of these‏
‎Correct Answer:- Option-A‏
‎Question53:-If *quadX” and *quadY" are two random variables having finite expectations, then the value‏
‎of “quadE["min"{X,Y}+"max"{X.Y}I" is‏
‎யலா!‏ ۸۸ا ‎கி‏
‎B:-less than "quadE(X+Y)‏
‎C:-equal to "quadE(XY)"‏
‎D:-equal to’ quadE(X+Y)"‏
‎Correct Answer:- Option-D‏
‎Question54:-The Poisson distribution *quadP{Lambda)" is unimodal when‏
‎A:-'quadlambda’ is not an integer‏
‎B:-"quadlambda’ is an integer‏
‎C:-Both (3) 8೧6 (2)‏
‎D:-Neither (1) nor (2)‏
‎Correct Answer:- Option-A‏
‎Question55:-Which of the following distribution is not a member of power series family of distributions?‏
‎കഃ‏

D:-Hypergeometric
Correct Answer:- Option-D

೧6500756: -1 ` ೩೮% follows normal *quadN{mu,sigma}” , then the approximate value of *quadE{|X-mu|}" is
A:-Zero

D:-"quadsqrt(4/Pi)sigma’*
Correct Answer:- Option-C
Question57:-If “quadX’ is uniformly distributed with mean unity and variance 0.75, then *quadP(X>1)="
A:-0.25
:-0.5
.75

¢
0-1
Correct Answer:- Option-B
Question58:-If “സഃ follows normal *quadN{mu,Sigma)" , then quadY=e"~X" follows
A:-Log-normal distribution
B:-Exponential distribution
C:-Logistic distribution
D:-Pareto distribution
Correct Answer:- Option-A
If *quadX j* follows exponential *quadE(Theta_j)* distribution, for *quadj=1,2,....n," then the distribution
{X 1X2,..Xn}
A:-"quadE(Theta j)*
B:-* E (prod_{j=1}"n theta j)*
C:-*quadE(sum_(j=1)"nTheta_j}*
D:-*quadE["min"{Theta_1,Theta_2,...,Theta_n}I"
Correct Answer:- Option-C
Question60:-The mode of *quadF* -distribution is
A:-always less than unity
B:-sometimes less than unity
C:-always greater than unity
D:-sometimes equal to unity
Correct Answer:- Option-A

Question61:-"Simple random sampling" is the technigue of drawing a sample in such a way that each unit of the population
has

inct and dependent chance of being included in the sample
. nctbutindependentchancecfbe
C:-an equal but dependent chance of being included in the sample