COMM 291 Chapter Notes - Chapter 6: Sophomore Slump, Standard Deviation, Scatter Plot

82 views2 pages
26 Jan 2018
School
Department
Course
yatauyeung123 and 24 others unlocked
COMM 291 Full Course Notes
16
COMM 291 Full Course Notes
Verified Note
16 documents

Document Summary

Correlation conditions: quantitative variables condition: correlation applies only to quantitative variables, linearity condition: measures the strength only of the linear association, outlier condition: unusual observations can distort the correlation and make a small correlation look big. Lurking variable: affecting both of the variables observed. Residual: line that comes closer to all the points than any other line. Slope and intercept of the least squares line: correlation strength of the linear association the standard deviations units mean --< where to locate the line b1 = r sy/sx. Y = rzx for every standard deviation we deviate form the mean in x, we predict. The (cid:498)sophomore jinx(cid:499) in professional sports: a player who has a brilliant that y will be r standard deviations away from the mean in y. The cover of sports illustrated jinx: an athlete who makes the cover of sports rookie performance is not quite as brilliant the second year illustrated magazine experiences a drop in performance.

Get access

Grade+
$40 USD/m
Billed monthly
Grade+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
10 Verified Answers
Class+
$30 USD/m
Billed monthly
Class+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
7 Verified Answers

Related Documents