The empirical rule states all the following except
A) Almost all observations fall in the interval x ± 3s.
B) Approximately 95% of all observations fall in the interval x ± 2s.
C) Approximately 65% of all observations fall in the interval x ± s.
D) Approximately 68% of all observations fall in the interval x ± s.

Question

Quizplus · Accepted Answer

The empirical rule, also known as the 68-95-99.7 rule, states that for a normal distribution, approximately 68% of the data falls within one standard deviation (x ± s), not 65% as stated in option C.

The Empirical Rule States All the Following Except