Detroit Tigers. From the Baseball Almanac website, we found the heights, in inches, of the players on the 2012 World Series runner-up Detroit Tigers baseball team.

72 77 75 75 73 77 72 75 80 71 71 73 77 78 72 75 72 75 77 76 77 72 74 74 71 72 73 72 74 76 77 71 71 71 74 71 73 72 76 72 76 73 76 72 71 75 68

a. Construct a stem-and-leaf diagram of these data with five lines per stem.

b. Why is it better to use five lines per stem here instead of one or two lines per stem?