Discrete Variable/Examples/Number of Children
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Example of Discrete Variable
The number $N$ of children in any given family can take one of the values in the set $\N = \set {0, 1, 2, \ldots}$
However, $N$ cannot take the value of a number which is not a natural number, for example, $2 \cdotp 5$ or $3 \cdotp 842$.
That is, $N$ is a discrete variable.
Sources
- 1972: Murray R. Spiegel and R.W. Boxer: Theory and Problems of Statistics (SI ed.) ... (previous) ... (next): Chapter $1$: Discrete and Continuous Variables: Example 1.