Which of the following statements are true? check all that apply.

a)the mean is affected by outliers.

b) the mean is always a more accurate measure of center than the median.

c)removing an outlier from a data set will cause the standard deviation to increase.

d)if a data set’s distribution is skewed, then 95% of its values will fall between two standard deviations of the mean.

e) if a data set’s distribution to skewed to the right, its mean will be larger than its median.