**March 13 and Beyond**

Check in on Lauren Stout's website for information. :-)

**Day 9 and 10 - March 6 and 8**

Presentation of Linear Regression Projects

**Day 8 - March 1**

**Learning Target**

Explain why data may need to be transformed and some possible transformations

**Class Agenda**

Video - "Transforming nonlinear data: steps and examples"

Discuss "Residual Plot"

Video - http://stattrek.com/regression/linear-transformation.aspx

**Homework**

Project ready for presentation: DUE March 6

Project submitted on paper or electronically by March 8

**Day 7 - February 27**

**Learning Target**

Explain the meaning of *a *and *b* for a line of regression given the context

Extrapolate the line to make predictions for data points beyond the given set of data

**Class Agenda**

Video - "Interpreting Linear Relationships Using Data"

Practice finding and interpreting

-linear regression equation

-slope

-y-intercept

-extrapolating points

-coefficient of determination

correlation coefficient

4 tests for validity of linear model

**Homework**

Regression line equation, correlation coefficient and coefficient of determination for your project. DUE March 1

**Day 6 -February 22**

**Learning Target**

Explain the meaning of a specific Coefficient of Determination

Explain the difference between Correlation Coefficient and Coefficient of Determination

**Class Agenda**

Formative Assessment - "Scatterplots and Lines of Best Fit" (a copy can be found under the documents tab)

Linear Regression Project (Copies of this document can be found under the documents tab)

Study.com video - "Coefficient of Determination: definition, formula, example"

Correlation Coefficient and Coefficient of Determination explained:

https://mathbits.com/MathBits/TISection/Statistics2/correlation.htm

Practice finding and interpreting Coefficient of Determination AND Correlation Coefficient using death rate data

**Homework**

Scatterplot and data table for project, DUE Monday February 27

**Day 5-February 15**

**Learning Target**

Explain the meaning of a given correlation coefficient

Explain the difference between correlation and causation

**Class Agenda**

Video- "How to interpret correlations in research results" Minute 8:17 on

Video "The correlation coefficient: Practice problems"

Work through examples

**Homework**

none

**Day 4 - February 13**

**Learning Target**

Calculate and interpret the correlation coefficient

**Class Agenda**

Reviewed and practiced Least Squares Formula

Video -"The Correlation Coefficient: definition, formula and example"

Complete practice problems from video

Practice more with death rate data

**Homework**

Find correlation coefficient for hydrocarbons, nitrogen and household size from the death rate data

**Day 3 - February 8**

**Learning Target**

Find simple regression line using Least Squares Formulas

Analyze residuals to see if they satisfy the 4 conditions for linear regression analysis

**Class Agenda**

Video - "Problem solving using linear regression: steps and examples"

Using Jakes data from the video, calculate slope and y-intercept using Least Squares formula

Video - "Analyzing residuals"

Discuss 4 conditions for Linear Regression Analysis to be valid: Statistical independence, linearity, homoscedasticity and normality

**Homework**

Death Rate data sheet

**Day 2 - February 1**

**Learning Target**

Find regression line 2 ways: draw line of best fit and write equation for line AND enter data into calculator and calculate regression line using LinReg function

**Class Agenda**

Watch video "Simple linear regression: definition, formula,examples"

Practice graphing and writing equations and calculating regression equations, use Hannah's data from the video

**Homework**

graph and estimate regression line for Brain vs. Body or Per Capita data. Write equation for line of best fit. Compare your equation to calculator line using LinReg function.

**Day 1 - January 30**

**Learning Target**

Describe the correlation between the two variables as strong/weak and positive/negative

**Class Agenda**

Vocabulary - scatterplot, bivariate data, correlation, independent variable, dependent variable

Video - "Creating and interpreting scatterplots"

Create scatter plots for Liam's data, then for brain vs. body size and look for correlations

**Homework**

Bring 5 ideas of variable that you are curious if they might have a correlation to the next class