Box Plots and Outliers Analysis

This video tutorial demonstrates how to use the TI-84 calculator to create box plots, both with and without outliers. It explains the methods used by the TI-84 to calculate quartiles and identify outliers, specifically the Mohr and McCabe method for quartiles and Tukey's method for outliers. The tutorial provides step-by-step instructions for entering data into the calculator, selecting the appropriate box plot tool, and interpreting the results, including the five-number summary. The video also covers how to sketch box plots and identify outliers visually.

What method does the TI-84 use to calculate quartiles?

• Mean and median method

• Standard deviation method

• Mohr and McCabe method

• Tukey's method

Which of the following is used to identify outliers in the TI-84?

• None of the above

• Both A and B

• Values greater than Q3 plus 1.5 times the IQR

• Values less than Q1 minus 1.5 times the IQR

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

• Press 'Stat' and then 'Enter'

• Press 'Graph'

• Press 'Trace'

• Press 'Zoom'

Which option should be selected for a box plot that does not show outliers?

• First option

• Second option

• Fourth option

• Fifth option

What is the median value in the five-number summary of the given data set?

• 45

• 38.5

• 52

• 32

How can you automatically adjust the window to show all data in the TI-84?

• Press 'Stat'

• Press 'Graph'

• Press 'Zoom' and then option 9

• Press 'Trace'

What indicates an outlier in a box plot with outliers on the TI-84?

• A dashed line

• A shaded area

• A single point outside the whiskers

• A vertical line

Where does the left tail end in the box plot with outliers?

• At quartile 3

• At quartile 1

• At the next greatest data value

• At the minimum value

What is the maximum value in the five-number summary of the data set?

• 32

• 52

• 38.5

• 45

What is the purpose of using the TI-84 box plot tools?

• To perform linear regression

• To visualize data distribution and identify outliers

• To solve algebraic equations

• To calculate mean and standard deviation