Bernoulli distribution
The random variable X takes only the values 0 or 1 (has a support T = {0, 1})
Examples: coin toss
For n independent repetitions of a Bernoulli experiment
Example: n independent draws of lottery with two possible outcomes prize or blank
Count the number of (random) incidents / events within a fixed time interval, if they can occur at any time
Examples: Property insurance claims within one year; Number of cases of a rare disease in one month
Results from the modeling of durations where time is measured - at least approximately - continuously
Examples: : Lifetime of a product or technical system
The distribution function of the (standardized) sum of n independent, identically distributed random variables
Examples: Deviations from target values in the production of equipment, physical sizes (height, weight)
\(\chi ^2\) distribution (\(\chi ^2(n)\)
Distribution of the sum of independent squared standard normally distributed random variables
t distribution (t(n))
Required especially for parameter tests and confidence intervals for parameters in statistical inference
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