Which of the Following Is Included in the Empirical Rules

Multiple Choice

Which of the following is included in the empirical rules?

A) Approximately 59% of the observations will fall within two standard deviations of the mean,or within x ± 2s.
B) Approximately 68% of the observations will fall within one standard deviation of the mean,or between x - s and x + s.
C) Approximately 89% of the observations will fall within three standard deviations of the mean,or within x ± 3s.
D) Approximately 28% of the observations will fall within three standard deviations of the mean,or within x ± 3s.