Exploring Scatter Plots and Line of Best Fit with TI-84

This video tutorial demonstrates how to use a TI-84 calculator to find the line of best fit and visualize data with a scatter plot. It covers entering data, calculating linear regression, setting up the scatter plot, adjusting the graph window, and clearing data for new problems.

First step to input data in TI-84?

• Press 'graph' button

• Select 'stat' button

• Choose 'calc' menu

• Hit '2nd' button

How many lists for ages & weights on TI-84?

• Four lists

• Three lists

• Two lists

• One list

Importance of selecting correct lists (L1 & L2) for ages & weights?

• Ensure accurate entry

• Calculate mean

• Save memory

• Speed up calculation

Menu option for best fit line on TI-84?

• Edit menu

• Calc menu

• Stat menu

• Matrix menu

'Linear regression' on TI-84 means?

• Graph type

• Math operation

• Data list

• Best fit line

Purpose of storing regression equation in Y1?

• Calculate slope

• Graph equation

• Save for later

• Determine y-intercept

Adjust view for scatter plot on TI-84?

• Change 'mode'

• Select 'graph' button

• Adjust 'window' settings

• Use 'zoom' function

Color of best fit line on color calculators?

• Yellow

• Red

• Green

• Blue

Significance of adjusting 'window' settings on TI-84?

• Change contrast

• Lock screen orientation

• Customize background

• Ensure visibility of plot & line

Clear old data on TI-84 for new problem?

• Delete entries manually

• Use 'clear list' option

• Reset calculator

• Turn off calculator