Question
Which of the following could be the valid value(s) of
the correlation coefficient between two variables? (A) -1 (B) +1 (C) -2 (D) +2 Choose the correct answer from the options given belowSolution
The correlation coefficient, which measures the strength and direction of a linear relationship between two variables, ranges from -1 to +1. -1 indicates a perfect negative linear correlation, +1 indicates a perfect positive linear correlation, and 0 indicates no linear correlation. Values outside this range, such as -2 or +2, are not possible.
Boyle’s Law is applicable to gases under which conditions?
A closely wound solenoid 40 cm long has 5 layers of windings of 400 turns each. The diameter of the solenoid is 2 cm. If the current carried is 8.0 A, e...
For a projectile, maximum range is obtained when angle of projection is:
The intensity of any wave is proportional to which quantity?
Which phenomenon does a hologram use to create an image?
In Young’s double-slit experiment, if the distance between slits is increased, fringe width:
What is the work done when a force of 10 N moves an object by 5 m in the direction of the force?
A projectile is fired at an angle θ and reaches maximum height
H and range R. The angle between velocity and acceleration at the highest poin...
Which law explains why it is difficult to hammer a nail into a freely suspended wooden frame?
What is the speed of sound in air at room temperature (20°C)?