A population has μ = 50.What value of σ would make X = 55 an extreme value out in the tail of the distribution?
A)σ = 1
B)σ = 5
C)σ = 10
D)Cannot determine with the information given

Question

Quizplus · Accepted Answer

A value is considered extreme in the tail of the distribution if it is several standard deviations away from the mean. With μ = 50 and X = 55, a σ = 1 would mean X is 5 standard deviations away from the mean, which is indeed extreme.

A Population Has μ = 50