Using the TI-84 for Statistics

This video tutorial demonstrates how to use the TI-84 calculator to determine the five-number summary of a dataset, which includes the minimum, first quartile, median, third quartile, and maximum. It provides step-by-step instructions on entering data, running the one-variable stats tool, and interpreting the results. The tutorial also discusses different methods for calculating quartiles and emphasizes the importance of using the same method as the calculator in class. The video concludes with helpful tips for ensuring consistency in calculations.

What is the purpose of using the one variable stat tool on the TI-84 calculator?

• To solve algebraic equations

• To plot a scatter diagram

• To determine the five-number summary of a dataset

• To calculate the mean of a dataset

What is the first step in entering data into the TI-84 calculator?

• Clearing the old data from the columns

• Pressing the graph button

• Turning off the calculator

• Entering the data directly into L2

Which key sequence is used to run the one-variable stat tool on the TI-84?

• Stat, right arrow, calculate

• Graph, left arrow, plot

• Mode, down arrow, calculate

• 2nd, up arrow, stat

What should you do if your data is in a different list than L1?

• Ignore and proceed with L1

• Use the graph function

• Delete all data and start over

• Press second, then the number of the list

What is the minimum value in the five-number summary example provided?

• 21.65

• 2.6

• 28.2

• 12.15

What can the five-number summary be used to create?

• A histogram

• A pie chart

• A box plot

• A line graph

Why is it important to use the same method as the calculator for calculating quartiles?

• To ensure consistency in results

• To save time

• To avoid using the calculator

• To make calculations easier

What formula does the TI-83 calculator use to calculate the position of the lower quartile?

• 0.75 times the quantity n plus one

• 1.5 times the quantity n plus one

• 0.25 times the quantity n plus one

• 0.5 times the quantity n plus one

What does the TI graphing calculator return if the position is a decimal?

• The maximum position

• The rounded position

• The average position

• The exact position

What should you verify before using the calculator for the five-number summary?

• That the data is in L2

• That the calculator is in graph mode

• That your class uses the same method as the calculator

• That the calculator is fully charged