(b) Approximately what percent of the values in a distribution lie between the 25th percentile and the 75th percentile?

A.50%.

B.75%.

C.25%.

D.None of the above.

(c) In general, if the sample size is large, adding an extremely large outlier to a data set will not substantially affect _____ .

A.the sample mean

B.the sample standard deviation

C.the sample median

D.None of the above.