PSYC206 Lecture 4 The Normal Curve UC YO+ UNIVERSITY OF CANTERBURY Te Whare Wananga o Waitaha CHRISTCHURCH NEW ZEALAND
Outline - The Normal Curve 1. Characteristics of the normal curve 2. Why approximations to the normal curve are so common 3. Why some distributions are not near normal 4. Normal curve and Z scores 5. Revise this class 2
Revision - Descriptive Statistics · Univariate - Frequency tables, graphs (histograms and frequency polygons), mean, variance, standard deviation, Z scores · Bivariate - correlation coefficients (see Lecture 4 ... ) · Inferential statistics - making decisions on the basis of data . Today's topic - one of the most important concepts for inferential statistics - the normal curve 3