You are given n 5 measurements: 2, 1, 1,3, 5.a. Calculate the sample mean, x.b. Calculate the sample variance, s 2, using the formulagiven by the definition.c. Find the sample standard deviation, s.d. Find s 2 and s using the computing formula. Comparethe results with those found in parts b and c.

STAT 30100 Elementary Statistical Methods th *Notes are based off lecture and 12 edition Statistics Textbook by James McClave and Terry Sincich Chapter 1: Statistics, Data, and Statistical Thinking What is Statistics A mathematical science, but not a branch of mathematics. Science of data o Deals with the study of: Collecting Classifying Summarizing Organizing Analyzing Interpreting, and Presenting data Can be descriptive or inferential o Descriptive Utilizes numerical and graphical methods to organize, summarize,