Quadratic Regression on TI-84 Plus CE

This video tutorial by Rob explains how to perform quadratic regression using a TI-84 Plus CE calculator. It covers entering data, setting up a scatter plot, graphing, enabling stat diagnostics, performing quadratic regression, and plotting the line of best fit. The tutorial provides step-by-step instructions to ensure accurate data entry and visualization, helping users understand how to use the calculator for statistical analysis.

What is the first step in performing quadratic regression on the TI-84 Plus CE?

• Enter the data into the calculator

• Adjust the calculator's settings

• Clear the calculator's memory

• Turn on the calculator

Which button do you press to start entering data on the TI-84 Plus CE?

• Zoom

• Graph

• Stat

• Mode

How do you clear old data from a list on the TI-84 Plus CE?

• Press the reset button

• Turn the calculator off and on

• Press the delete button

• Press the clear button when the cursor is on the list name

Where do you enter the X data on the TI-84 Plus CE?

• L4

• L2

• L3

• L1

Which list should the X data be entered into for quadratic regression?

• L4

• L1

• L3

• L2

What is the next step after entering data into L1 and L2?

• Turn off the calculator

• Perform a linear regression

• Clear the data

• Set up a scatter plot

Which button do you press to access the stat plot menu?

• Trace, then Enter

• Mode, then Stat

• Second, then Y equals

• Graph, then Zoom

What is the purpose of using the Zoom Stat function?

• To clear the graph

• To enter new data

• To adjust the window to fit the scatter plot

• To perform a regression

What should you do if the scatter plot does not display correctly?

• Perform a linear regression

• Turn off the calculator

• Use Zoom Stat to adjust the window

• Re-enter the data

How can you verify that the data was entered correctly?

• By performing a linear regression

• By turning off the calculator

• By clearing the data

• By using the trace function