If two regression coefficients are found to be - 0.6 and -1.4, the correlation coefficient will be
0.92
0.43
- 0.43
- 0.92
The iteration formula xn + 1 = xn - is commonly known as
Bisection method
Newton-Raphson method
False-positions method
None of the above
Which of the following is a peripheral device?
visual display unit
Hard disk drive
Floppy disk drive
All of the above
D.
All of the above
Visual display unit, Hard disk drive and floppy disk drive, all are peripheral device.
Which of the following is not a general purpose application software ?
Word processors
Programs for playing games
Spread-sheets
Data communication software
The equation of the normal to the hyperbola x2 - 16y2 - 2x - 64y - 72 = 0 at the point (- 4, - 3) is
5x + 16y + 79 = 0
16x + 5y + 97 = 0
16x + 5y + 79 = 0
5x + 16y + 97 = 0
Which of the following methods is surely convergent?
Regula-Falsi method
Balzano method
Both (a) and (b)
Neither (a) nor (b)