# If two lines of regression are y=3x-5 and Y=2x-4,then p(X,Y) is equal to

1.  √(2/3)

2.  √(1/6)

3.  √(3/2)

4.  None of these

4

√(2/3)

Explanation :
No Explanation available for this question

# The transfer function of system is F(s)=The phase shift at ω=0 and ω=-∞ will be

1.  900 and 00

2.  -1800 and 1800

3.  -900 and 700

4.  None of these

4

None of these

Explanation :
No Explanation available for this question

# If two lines regression are 3x-y-5=0 andare respectively

1.  1 and -2

2.  -1 and 2

3.  2 and -1

4.  -2 and -1

4

1 and -2

Explanation :
No Explanation available for this question

# Transfer function of transportation lag is e-sT. If the lag is small as compared with the time constant of the system, it can be approximated by

1.  sT

2.  1+sT

3.  1-sT

4.

4

1-sT

Explanation :
No Explanation available for this question

# If regression equation of Y on X is Y=λx+4 and that of X on Y be 4x=Y-5 then

1.  0

2.  0≤λ≤1

3.  0≤λ≤4

4.  None of these

4

0≤λ≤4

Explanation :
No Explanation available for this question

# If cov (X,Y)=0,then two lines of the regression are

1.  Parallel

2.  Concident

3.  At right angles

4.  None of these

4

At right angles

Explanation :
No Explanation available for this question

# If two lines of reression are at right angles,then p(X,Y) is equal to

1.  1

2.  -1

3.  1 or -1

4.  0

4

0

Explanation :
No Explanation available for this question

# If in a regression analysis problem,byx=-0.9 and bxy=0.4,then p(x,y) is

1.  0.6

2.  -0.6

3.  0

4.  None of these

4

None of these

Explanation :
No Explanation available for this question

# The transfer function of a simple RC network functioning as a controller is Gc(s)=The condition for the RC network to act as a phase lead controller is

1.  P1

2.  P1>0

3.  P1=z1

4.   P1>z1

4

P1>z1

Explanation :
No Explanation available for this question

# If bxy and byx be the two regression coefficients,then coefficient of correlation p is given by

1.  p=√(bxybyx)

2.  p=√(byxbyx)

3.

4.  None of these

4