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The variance of a constant 'x' is 0. This is because the variance is a measure of how much a random variable deviates from its mean, and if 'x' is a constant, it has no variability, resulting in a variance of 0.
Which of the following acid is found both in tomato and wood sorrel?
Which of the following is not a physical change?
What is the normal pH of human blood?
Which of the following gases in the atmosphere is/are responsible for acid rains?
1. Oxides of Sulphur
2. Oxides of nitrogen
3. Oxi...
Which of the following is the correct set-up for electrolytic refining of silver?
Which of the following is used as red pigment in making batteries, lead glass and rust proof primer paints?
For a perfectly elastic collision, the coefficient of restitution (eee) is
Which of these is not a function of proteins?
A bottle of sodalime is grasped by the neck and swung briskly in a vertical circle, Near which portion of the bottle do the bubbles collect?
Before X-ray examination (coloured X-ray) of the stomach, patients are given suitable salt of barium because
