Scatter Plots and Trend Lines

Scatter Plots and Trend Lines

Objective: 

• To write an equations of a trend line and of a line of best fit
• To use a trend line and a line of best fit to make predictions

I CAN create a scatter plot from two quantitative variables.

I CAN describe the form, strength and direction of the relationship.

I CAN use the function to predict values.

I CAN use a calculator or computer to find the correlation coefficient for a linear association and interpret the meaning of the correlation coefficient in the context of the data.

I CAN explain the difference between causation and correlation.

insert SUMMARY, VOCAB(Link terms to glossary), etc. here.........

Standards

Standards

• MAT-HS.S-ID.06  Represent data on two quantitative variables on a scatter plot, and describe how the variables are related. 
  • a.  Fit a function to the data; use functions fitted to data to solve problems in the context of the data. 
  • c.  Fit a linear function for a scatter plot that suggests a linear association.
• MAT-HS.N-Q.01  Use units as a way to understand problems and to guide the solution of multi-step problems; choose and interpret units consistently in formulas; choose and interpret the scale and the origin in graphs and data displays.
• MAT-HS.F-LE.05  Interpret the parameters in a linear, quadratic, or exponential function in terms of a context.
• MAT-HS.S-ID.07  Interpret the slope (rate of change) and the intercept (constant term) of a linear model in the context of the data.
• MAT-HS.S-ID.08  Compute (using technology) and interpret the correlation coefficient of a linear fit
• MAT-HS.S-ID.09  Distinguish between correlation and causation.

Resources

Resources

Assessments

Formative assessments