8.[113Points] l DETAILS l PREVIOUSANSWERS I l MYNOTES In the 4x100 medley relay event in swimming, four swimmers swim 100 yards, each using a different stroke. The four medley relay swimmers for a college team preparing for their conference championships have the following summary statistics (in seconds) for the four strokes: Question. Let the random variable T denote the relay team's total time in the medley event. Determine the mean ECU and standard deviation SD(T). y mean standard deviation (use 3 decimal places)