Sinusoidal Regression with TI-84

This video tutorial explains how to perform sinusoidal regression using a TI-84 Plus C graphing calculator. It covers entering temperature data for Memphis, Tennessee, graphing it as a scatter plot, and adjusting calculator settings for accurate graphing. The tutorial also demonstrates how to perform sinusoidal regression, store the regression equation, and view it on the graph. Troubleshooting tips are provided to ensure the calculator is set to radians for correct graphing.

What is the main topic discussed in the video?

• Linear regression on TI-84 Plus CE

• Polynomial regression on TI-84 Plus CE

• Sinusoidal regression on TI-84 Plus CE

• Quadratic regression on TI-84 Plus CE

Which city is used as an example for modeling temperatures?

• Memphis, Tennessee

• Los Angeles, California

• New York, New York

• Chicago, Illinois

What type of data is entered into the calculator for graphing?

• Weekly wind speeds

• Daily humidity levels

• Monthly rainfall

• Average monthly high temperatures

What should be the X values when entering data for months?

• 0 to 11

• 1 to 12

• 1 to 10

• 0 to 12

What is the first step to ensure the calculator is set up correctly for graphing?

• Adjust the window settings

• Turn on the plot

• Enter the data

• Change the mode to degrees

What should you do if the scatter plot does not appear after hitting graph?

• Restart the calculator

• Change the calculator to degrees mode

• Re-enter the data

• Check if the plot is turned on and adjust the window settings

What is the purpose of storing the regression equation in the calculator?

• To manually enter it later

• To print it out

• To automatically graph it over the scatter plot

• To save it for future use

What mode should the calculator be in for accurate sinusoidal regression graphing?

• Radians

• Degrees

• Gradians

• Decimal

What happens if the calculator is not in radians mode?

• The graph will be in black and white

• The graph will not appear

• The graph will be upside down

• The graph will be incorrect