In data analysis, the independent variable represents the input or cause that influences changes in the dependent variable, which is the outcome. By controlling or altering the independent variable, analysts can study its impact on the dependent variable. For example, in a marketing analysis, the budget (independent variable) may be adjusted to observe effects on sales revenue (dependent variable), providing insight into budget effectiveness. This causal relationship allows analysts to understand how different factors influence outcomes. Option A is incorrect as it describes a dependent variable, not an independent one. Option B is incorrect because variables in analysis are often manipulated, not held constant. Option D is incorrect as independent variables significantly affect analysis outcomes. Option E is incorrect as random variables are not independent by definition in this context.
A stone of mass 0.3 kg tied to the end of a string is whirled round in a circle of radius 1.2 m with a speed of 20 rev./ mim in a horizontal plane. Wha...
Which of the following statement is correct?
I. Magnetite is a natural magnet
II. A freely suspended magnet always aligns in N-S direction
Which of the following pair regarding sound is correct?
I. Loudness – depends on amplitude
II. Shrillness – depends on frequency
A soap bubble shows colours when illuminated with white light. This is due to –
Small bubbles are perfectly spherical because of –
A sphere of radius 1m encloses a charge of 10μC. Another charge of −5μC is placed inside the sphere. The net electric flux would be :
Lux is the SI unit of -
A constant retarding force of 20 N is applied to a body of mass 10 kg moving initially with a speed of 12 m s–1. How long does the body tak...
The oldest type of energy known to man is –
If a force is applied to two stationary objects with different masses for the same duration, what will be the same for both objects?
