Given f(x,y)= 8xy, when 0<=x<=1, 0<=y<=x and f(x,y)=0 elsewhere, find (i) Marginal density of x (ii) Marginal density of y (iii) Conditional density of x (iv) Conditional density of y

## SIKSHAPATH Latest Questions

Question 1. For given two regression equations x = – 0.4y + 6.4 and y = – 0.6x + 4.6, The mean of y is(a)1 (b)2 (c)3 (d)4Question 2. Chi-square is used to analyze:Squares Ranks frequencies All of aboveQuestion 3. Calculate the ...

State t-test and its applications for small samples. A computer while calculating correlation coefficient between two variables X and Y from 25 pairs of observations obtained the following results : n=25, ∑ X= 125, ∑ X^2=650, ∑ Y=100, ∑ Y^2= 460, ...

The theory predicts the proportions of beans in the four groups G1, G2, G3, G4 should be in the ratio 9:3:3:1. In the experiment with 1600 beans the numbers in the four groups were 882, 313, 287 and 118.(Value Given ...

Calculate the regression coefficients from the following :x: 1 2 3 4 5 6 7 8y: 3 7 10 12 14 17 20 24 2.State t-test and its applications for small samples. 3.If the regression coefficient are 0.8 and 0.2 , what would be the value of coefficient of correlation?

When H0 is wrong and we may accept it is : Type I Error , Producer’s risk Type I Error , Consumer’s risk Type II Error , Producer’s risk Type II Error , Consumer’s risk