A Data Set Has a Mean of 60 and a Standard

Multiple Choice

A data set has a mean of 60 and a standard deviation of 5. Which of the following might possibly be true?

A) More than 90% of the data values are between 45 and 75.
B) No less than 30% of the data values are less than 50 or greater than 70.
C) No more than 50% of the data values are between 50 and 70.
D) At least 15% of the data values are less than 45 or greater than 75.