Rank the exponential,degenerate,Erlang (k = 2),and Erlang (k = 4)distributions from highest to lowest variability,given the same mean.
A)degenerate,Erlang (k = 2),Erlang (k = 4),exponential.
B)degenerate,Erlang (k = 4),Erlang (k = 2),exponential.
C)exponential,Erlang (k = 2),Erlang (k = 4),degenerate.
D)exponential,Erlang (k = 4),Erlang (k = 2),degenerate.
E)none of the above.

Question

Quizplus · Accepted Answer

The exponential distribution has the highest variability, followed by Erlang (k = 2), Erlang (k = 4), and the degenerate distribution, which has zero variability.

Rank the Exponential,degenerate,Erlang (K = 2),and Erlang (K = 4)distributions