Construct and Interpret Two-Way Frequency Tables

10.4 Frequency Tables

I can describe associations between two sets of data using relative and conditional frequencies.

Must Do:

1. Take notes in your notes packet.

2. Answer all extra questions on here.

3. Show me when your done to get your next assignment.

Vocab:

Watch the video and take notes in your notes packet. ​

​Example 1:

Labelling

Kenny wanted to investigate the relationship between the number of people visiting a park in the winter and the number of people who played basketball at the park. He asked fifty people if they had visited the park in the winter and whether or not they had played basketball. 

His data showed that 30 people had visited the park in the winter and 20 had not. Of the 30 who had visited the park in the winter, 24 had played basketball. Of the 20 who had not visited the park in the winter, 5 had played basketball there in the last year. 

Construct a two-way frequency table showing this information.

Drag labels to their correct position on the image

Park in Winter

Yes

yes (horizontal)

no (horizontal)

6

5

No

Play Basketball

15

24

Vocab:

Watch the video and take notes in your notes packet. ​

​Example 2:

Multiple Choice

What is the relative frequency (to the nearest percent) of boys among those who cannot bike to school? 

• 4%

• 14%

• 13%

• 29%

Multiple Choice

What is the CONDITIONAL relative frequency that a person preferred baseball given they are male? (only look at the male row... divide amount that prefers baseball by total males surveyed)

• 100%

• 0%

• 27%

• 31%

Multiple Choice

What is the CONDITIONAL relative frequency that a female was surveyed given they prefer basketball? (only look at the basketball column... divide amount of females that prefer basketball by the total people that prefer basketball)

• 100%

• 33%

• 27%

• 52%

Multiple Choice

What percentage of the days that it rained, did they forecast no rain?

• About 20%

• About 18%

• About 14%

• About 12%