Slide 1 Basic Statistical Concepts Psych 231: Research Methods in Psychology Slide 2 Turn in Journal summary #2 in class on Wednesday (moved from turning in last week in…

Slide 1 Slide 2 Statistics Psych 231: Research Methods in Psychology Slide 3 Distribution Properties of a distribution –Shape Symmetric v. asymmetric (skew) Unimodal v.…

Slide 1 Lecture 8: z-Score and the Normal Distribution 2011, 10, 6 Slide 2 Learning Objectives  Review standard deviation  Characteristics of standard deviation …

Slide 1 GTECH 201 Lecture 12 Intro to Descriptive Statistics Slide 2 Topics for Today Measures of Central Tendency Mean, Median, Mode Sample and Population Mean Weighted…

Slide 1 Basic Statistical Concepts Part II Psych 231: Research Methods in Psychology Slide 2 Statistics Why do we use them? Descriptive statistics Used to describe, simplify,…

Slide 1 Standard Deviation Slide 2 Two classes took a recent quiz. There were 10 students in each class, and each class had an average score of 81.5 Slide 3 Since the averages…

Organizing and Analyzing Data Types of statistical analysis DESCRIPTIVE STATISTICS: Organizes data measures of central tendency mean, median, mode measures of variability…

Vectors in the R-Language Vectors in the R-Language Vectors in the R-Language Vectors in the R-Language R has not a function for this !? Exercise: Write your own function…

Although the 5 number summary is very useful for describing a data set, it is not the most widely used. The most common measures are the mean for the center and the standard…

Introduction to Basic Statistics Mean (pronounced âX-barâ) The mean is the sum of the values of a set of data divided by the number of values in that data set. x = individual…