Discrete random variables | Statistics

Discrete random variables are variables that can assume only certain clearly separated values such as integers.

Discrete random variables usually comes from something that is counted. Examples of random variables can be the number of defective nails per one hundred produced. Discrete random variables does not have to be integers, but it is usually so that discrete random variables are integers. As there can not be 1.56 incorrect nails per one hundred produced, we say that the number of incorrect nails is a discrete variable.
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discrete random variables, statistics