HPC Section 1.7 Part 2

​Get into a group

• ​You must work with at least one other person, but no more than 3 other people. Groups of 2 - 4. Groups of 3 are ideal.

• ​You've got 30 seconds to find a group. - Go!

PC Section 1.7 Part 2

Using your calculator to find a line of best fit.

​Data Matrix Editor

​What you should learn

​-Linear Models and Scatter Plots

• ​How do I construct a scatter plot and interpret correlation?

• ​How do I use the data matrix editor to find a line of best fit?

​Real Life Data

​Yesterday, we talked about how we can model real life data using scatter plots and lines of best fit.

​Real Life Data

​We created a scatter plot for this data and found a line of best fit.

Multiple Choice

What kind of correlation does this datarepresent?

• positive

• negative

• no correlation

Multiple Choice

What kind of correlation does this scatter plot represent?

• positive

• negative

• no correlation

Multiple Choice

What kind of correlation does this scatter plot represent?

• positive

• negative

• no correlation

Multiple Choice

What kind of correlation does this scatter plot represent?

• positive

• negative

• no correlation

​For the information in the table, create a scatter plot and then find a line of best fit.

​

​Record your a, b and r^2 values.

​

​I will ask for answers in 5 minutes.

Fill in the Blanks

Fill in the Blanks

Fill in the Blanks

Open Ended

Using your linear equation stored in y1, go to the graph and predict the number of vehicles for the year 2010.

Open Ended

Using your linear equation stored in y1, go to the graph and use value to see what your model gives for the number of vehicles in 2002.  Is this number the same?  Why or why not?