The test checks how well each output member corresponds to the valid range of possible values. For example, for an exponential distribution with parameters
all the output members xi should lie within the range
a ≤ x
. A value
< 1 is impossible, that is, the fact that the variate
of exponential distribution with parameters
acquires a value less than
is an impossible event (not to be confused with a null event). Any output member lying outside the valid range causes an error.