Creating and Analyzing Two-Way Relative Frequency Tables

The video tutorial covers the conversion of two-way tables into relative frequency tables. It begins with an introduction to two-way tables, also known as contingency tables, and explains key terms like joint and marginal frequencies. The tutorial then demonstrates how to calculate marginal frequencies and convert them into relative frequency tables by dividing each cell's frequency by the total. The video also discusses analyzing data using these tables and provides examples of creating relative frequency tables by rows and columns. Finally, a practice exercise is given to reinforce the concepts learned.

What is a joint frequency in a two-way table?

• The percentage of a specific category

• The sum of all frequencies

• The count of occurrences in the body of the table

• The total of a row or column

What is a marginal frequency?

• The total of a row or column

• The percentage of a specific category

• The difference between two frequencies

• The count of occurrences in the body of the table

How do you find the relative frequency of a cell in a two-way table?

• Multiply the cell count by the total

• Add the cell count to the overall total

• Subtract the cell count from the total

• Divide the cell count by the overall total

What is the relative frequency of a cell with a count of 31 in a table with an overall total of 211?

• 0.12

• 0.13

• 0.14

• 0.15

If a cell has a relative frequency of 0.15, what is its percentage equivalent?

• 15%

• 150%

• 1.5%

• 0.15%

Which grade had the highest priority for sports according to the relative frequency table?

• 10th grade

• 12th grade

• 11th grade

• 9th grade

Which grade had the greatest response for grades being the most important?

• 12th grade

• 11th grade

• 10th grade

• 9th grade

What is the relative frequency of 22 blue-eyed students in a Latin class with a total of 90 students?

• 0.22

• 0.24

• 0.18

• 0.20

How do you calculate the relative frequency for a column total?

• Divide each cell by the column total

• Subtract each cell from the column total

• Divide each cell by the row total

• Multiply each cell by the column total

What is the relative frequency of 136 sixth graders who bring lunch out of 294 total sixth graders?

• 0.64

• 0.46

• 0.54

• 0.36