Suppose a baseball player steps to the plate with the intention of trying to "coax" a base on balls by never swinging at a pitch. the umpire, of course, will necessarily call each pitch either a ball (b) or a strike (s). what outcomes make up the event a, that a batter walks on the sixth pitch? (note: a batter "walks" if the fourth ball is called before the third strike.) larsen, richard j.; marx, morris l.. an introduction to mathematical statistics and its applications (page 19). pearson education. kindle edition.