{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Lecture22

# Lecture22 - STAT 350 Lecture 21 Chapter 3 Bivariate and...

This preview shows pages 1–9. Sign up to view the full content.

STAT 350 Lecture 21 Chapter 3 Bivariate and Multivariate Data and Distributions

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Announcement Homework #8 due Friday April 1 Lab 5 on Wednesday Lab 5 prep assignment due on Wednesday Lab 5 due on Saturday April 2 Office Hours (This Week Only) Wed 3:30 PM 4:30 PM Thur 3:30 AM 4:30 AM Normal Office Hours Next Week
Topics Scatter Plots Correlation Fitting a Line to Bivariate Data

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Bivariate Data Example First thing we need is some sort of plot…
3.1 Scatterplots 40 45 50 55 60 65 70 155 160 165 170 175 180

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Scatter plot Plots bi-variate data Plot the ( x,y ) pairs directly on plot Pattern within plot can indicate certain relationships between x and y Linear Quadratic, Cubic? Nonlinear? Exponential or Log?
3.2 Pearson’s Correlation Coefficient The Pearson’s correlation coefficient measures the strength and direction of the linear relationship Examples: Father’s height and son’s height Age and Bone Density Weight and Blood Pressure

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Karl Pearson (1857 1936) Sir Francis Galton (1822 1911) Thinking about the degree to which children resemble their parents
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### Page1 / 22

Lecture22 - STAT 350 Lecture 21 Chapter 3 Bivariate and...

This preview shows document pages 1 - 9. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online