What is the effect of an outlier on the mad (mean absolute deviation) of a data set.

choice a) an outlier does not change the mad.
choice b) an outlier always increases the mad.
choice c) an outlier always decreases the mad.
choice d) an outlier can either decrease or increase the mad.

personally, i'm debating between choices b and d. what do you think?

The doghouse shown has a floor, but no windows. find the total surface area of the doghouse, including the door.

1. there are 25 students who started computer programming in elementary school and 25 students who started computer programming in middle school. the first group had a mean final project grade of 95% and the second group had a mean final project grade of 92%. the line plot shows the differences after 10 rerandomizations. determine whether the difference in the means of the two groups is significant based on the line plot. explain your answer.

Determine the relationship of ab and cd given the following points