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Physics for Scientists and Engineers: A Strategic Approach with Modern Physics
Found in: Page 1136

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Short Answer

What is the difference between the probability and the probability density?

Probability is a number defining chances of and event to occur whereas probability density is distribution of probability over a region in space.

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Step by Step Solution

Concept Used

Difference between probability and probability density is same as difference between charge and charge density.


Probability: Chances of occurrence of an event is defined as Probability.

More is the likeliness of an even to happen, higher is it's probability.

Probability density is more of a distribution term. If probability of something is distributed over a length or region then probability density comes into play.

For example: Finding and electron in the region x=1 to x=5 will have different probability densities throughout this region.

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