(a) The 10 members of the swim team completed the following numbers of laps at today's practice:
 77, 79, 80, 82, 84, 85, 86, 87, 90, 91.
 Which measure should be used to summarize the data? 
Mean? 
Median? 
Mode?
                                             
                                          
                                          
                                        
											