Two-Way Frequency Tables

Two-Way Frequency Tables

A table that displays data collected from two different categories.



What are the two categories of data from this survey?

​

​What is a two-way frequency table?

Each cell that is formed by the intersection a row and a column represents the frequency (how many) of those display those categories.

The amount on the margin represents the total for each category.

The total amount of data points in the data is the intersection of the two totals for each category.

​How do your read two-way frequency tables?

Labelling

A: Girls who prefer watching videos

B: Boys who prefer watching videos

C: Girls who prefer playing games

D: Students who prefer watching videos

E: Boys who prefer playing games

F: Students who prefer playing games

G: Number of boys

H: Number of students

I: Number of girls

Drag labels to their correct position on the image

F

G

B

C

H

I

D

E

A

​How do we answer questions about percentages from the table?

​How do we answer questions about percentages from the table?

​How to calculate percentages

​Let's answer the Regents Question!

Match

Read carefully! Set up a fraction $$\frac{part}{whole}$$ for each question

• Out of those who prefer to watch videos, what percent are girls?

• Out of the girls surveyed, what percent prefer to watch videos?

• Out of all students, what percent are girls who prefer to watch videos?

• $$\frac{142}{188}$$

• $$\frac{142}{196}$$

• $$\frac{142}{380}$$

Multiple Choice

Out of all boys surveyed, approximately what percent prefer to watch videos?

• 75%

• 36%

• 72%

• 97%