Stats test, part III The mean score on the Stats exam was 75 points with a standard deviation of 5 points, and Gregors z-score was -2. How many points did he score?

Section 1: Introduction to Statistics Stat 2220, Espey ➢ Statistics: the science concerned with the collection, organization, and analysis of information ➢ Statistical literacy: having the skills to question and interpret statistics encountered in everyday life ➢ Unit: the thing being described by a set of data (ex: Clemson Student) ➢ Variable: Characteristic of the units that is measured ➢ Population of units: all units of interest (ex: All Clemson Students) ➢ Population: The variable measurements of the whole population of units ○ N = population size ○ Parameter: A number calculated to describe the populat is the truth that we want to find, but is usually unknown because most research does not or ca