<<= Back Next =>>
You Are On Multi Choice Question Bank SET 371

18551. Let r(x, y)=Then the explained variation in y due to x is:

18552. If both regression coefficients are positive, then their sum is always:

18553. The line of best fit can be obtained by the principle of:

18554. The coefficients of determination is the square of:

18555. If r(x,y)=6, then r(−x + 32 ,y − 58 ) is:

18556. Probable error is used to test:

18557. Let X be the number of successes follow B(n,p), then the distribution of failures follow:

18558. Let X follows B(n,p) is positively skewed if :

18559. Correlation coefficient between the number of successes and failures in B(n,p) is:

18560. Let X follows B(n,p) and define Y=X − np√npq . Then Var(Y) is:

18561. If X and Y are two independent Poisson variates with parameters 2 and 3 respectively and let U=X+Y. Then P(U=0) is:

18562. Referring to 50, E(X/U=3) is:

18563. Which of the following statement about B(n,p) is always true?

18564. If X follows N(10, σ 2 = 4 ), then the standard deviation of aX is:

18565. If X follows U(0,1), then Var(1-X) is:

18566. The maximum height of N(0,1) curve is :

18567. As the scale parameter of normal curve increases, the distribution retains symmetry and becomes:

18568. If X and Y are independent N(0,1) random variates, then P(X

18569. The Normal curve has an area about .......within one unit of SD from mean:

18570. The mgf of a random variable X is M(t)= 11 − 2t ,|t|<1 font=''>2 . Then E(X) is :

18571. The square of t distribution is an F distribution for:

18572. The ratio of two independent N(0,1) variates is a:

18573. If T1 and T2 are two unbiased estimates of parameter θ, then (2 T1+5T2)/(7) is :

18574. The random variable X has mean 5 and variance Then P[|X-5|>4] is:

18575. The statistical error associated to the statement 'An innocent person is proved as guilty' is :

18576. To test H0 : µ = 1 against H0 : µ ≠ 1 based on large sample, the test statistic Z has a value Then p-value associated to the test is:

18577. Let X and Y be random variables with Cov(X,Y)=-25, then which of the following is true:

18578. The degrees of freedom associated to t-test for the difference of the means of two samples having sizes m, n based on large sample is:

18579. If F follows F(7,8), then 1/F follows:

18580. The distribution function F(x) of a random variable X lies between:

18581. The probability mass function of a discrete random variable X is f(x)= x10 for x=1,2,3,4 and 0 for other values of X. Let F(x) denote the distribution function of X. Then F(4)-F(3) is:

18582. let X be a random variable with distribution function F(x). The distribution function of 2X+3 is:

18583. A continuous random variable X is symmetric about a real number a (a ∈ R) if the distribution function X-a is same as the distribution function of:

18584. Let X be a random variable with pdf f(x)=e−||x||2 ,-∞

18585. Let X be a random variable for which E(X) exists and A is any real number. Then E|X-A| is minimum if:

18586. The joint distribution function of (X,Y) is given by F(x,y)=(1-e−x )(1-e−y ), x>0,y>The marginal distribution function of Y is:

18587. The function f(x)=x2 , x ∈ R is:

18588. limn→∞ ∑k = 0n nk e−nk! is:

18589. Let x1,x2 ,...,xn be n discrete values with corresponding frequencies f1,f2 ,...,fn . Also let F1, F2,...,Fn be the corresponding greater than cumulative frequencies. Then ∑i= 1n Fi N gives:

18590. According to Prof. Sturge's rule, the relation between the number of classes (k) and total number of observations in the data (N) is:

<<= Back Next =>>
Terms And Service:We do not guarantee the accuracy of available data ..We Provide Information On Public Data.. Please consult an expert before using this data for commercial or personal use
DMCA.com Protection Status Powered By:Omega Web Solutions
© 2002-2017 Omega Education PVT LTD...Privacy | Terms And Conditions