The z-score is only defined if one knows the population parameters; if one only has a sample set, then the analogous computation with sample mean and sample standard deviation yields the Student's t-statistic.hus, a positive standard score indicates a datum above the mean, while a negative standard score indicates a datum below the mean.
Nemanja Matic dictates how Chelsea play... of all the players Jose Mourinho wanted to avoid losing, he was perhaps top of the list. Of all the players Jose Mourinho wanted to avoid losing at this critical point in the season, Nemanja Matic was perhaps top of his list. Eden Hazard, Cesc Fabregas, Diego Costa or John Terry would all be missed, of course, but Matic dictates how Chelsea plays. His prowling presence, tackling strength and defensive acumen in midfield offers more freedom to the creative players, especially Fabregas in his deeper role.
Quick Answer. Professional basketball player Kobe Bryant plays the position of guard. As of the 2014 season, Bryant plays for the Los Angeles Lakers. Drafted by the Charlotte Hornets right out of high school, he was then traded to the Lakers.