Determine what key terms refer to in the following study. A survey of athletes in a university was conducted to study the heights of athletes, in meters. Fill in the letter of the phrase that best describes each of the items below. Population ____ Statistics ____ Parameter ____ Sample ____ Variable ____ Data _____ the average height of athletes in the university the average height of athletes in the survey all athletes in the university all students in the university the height of one athlete a group of athletes randomly selected 1.82, 1.76, 1.69, 1.93