PSYC 1010 Chapter Notes - Chapter 2: Skewness, Percentile, Percentile Rank

• School: University of Guelph
• Department: Psychology
• Course: PSYC 1010
• Professor: Scott Colwell

Document Summary

Set of scores in order from highest to lowest groups together individuals with same scores. Can be a table or graph but needs to include these two elements: the set of categories that make up the original measurement scale, a record of the frequency, or number of individuals in each category. Beside each x value number of times that particular measurement occurred in the data. When finding sum: use information in table to recover the complete list of individual scores. Multiply each x by its frequency and then. Example: two individuals with x= 4 therefore 2 out of 10 people had x=4 so proportion would be 2/10 = 0. 20. Describes frequency ( f) in relation to the total number (n) Presenting groups of scores rather than individual values. X values along x-axis with values increasing from bottom to top. Y-axis has to be approx - of its length (x-axis)