1) Both are positive 2) Both are negative 3) One is positive and another is negative 4) None of the above Solution: (1) Both are positive If... View Article
1) k ≤ 0 2) k ≥ 0 3) 0 ≤ k ≤ 1 / 4 4) 0 ≤ k ≤ 1 Solution: (3) 0 ≤ k ≤ 1 / 4 m1m2 ≤ 1 k . 4 ≤ 1 k ≤ 1 / 4 Also, m1 and m2 must be of the same... View Article
1) 0 2) 1 3) 0.5 4) 0.33 Solution: (2) 1 If the lines of regression coincide, then the value of the correlation coefficient is 1 or -1.... View Article
1) Greater than unity 2) Greater than or equal to unity 3) Less than or equal to unity 4) None of the above Solution: (3) Less than or equal... View Article
1) Parallel to axes 2) Perpendicular to axes 3) Inclined at any angle with axes 4) Coincident Solution: (1) Parallel to axes The regression... View Article
1) Zero 2) One 3) Negative 4) Positive Solution: (3) Negative If the correlation coefficient is negative, then the regression coefficient... View Article
1) 2 2) 5 3) 8 4) None of these Solution: (2) 5 s = a + (y / m), s2 = (1 / 4) y2 and r = 0.4 s = a + (y / m), s {bar} = a + [(y {bar}) /... View Article
1) 0 and 1 2) –1 and 1 3) 0 and ∞ 4) –∞ and 0 Solution: (2) –1 and 1 The value of the correlation coefficient between two variables lies... View Article
1) The value of y increases 2) The value of y decreases 3) The value of y remains constant 4) Nothing can be said Solution: (1) The value of... View Article
1) 1 2) –1 3) 1 / 2 4) 0 Solution: (4) 0 Both X and Y are independent variable, hence there is no correlation between them i.e., r = 0.... View Article
