SSH 301 Lecture Notes - Lecture 1: Descriptive Statistics, Health Equity, Univariate

• School: Ryerson University
• Department: Social Sciences and Humanities
• Course: SSH 301
• Professor: Melanie Knight

Document Summary

Variable: represents something ( use x as a variable) Square root: what multiplied by itself equals that number. Sigma: tells you to take the sum of the items. = 242 oi. e. x1 = 1, 2, 3, 4, 5. Xi = 1 + 2 + 3 + 4 + 5. Textbook page 7 15-9/6/2 (deal with the last fraction first always) Xi 5 = take sum of the set and subtract 5 from it. Xi 5 = 1 +2 + 3 -5 = 1. First square the scores and then add the squared scores. First add the scores, then square the total. Negatives: oone negative & one positive = negative otwo positives = positive otwo negatives = positive oone positive & one negative = negative. Rounding: rounding to the nearest hundredth. o o. Odd numbers send down, even numbers send up. Theory: explanation that connects two or more variables. Continuous variable: measurement of the variable can be subdivided infinitely. i. e. time.