Bivariate Data Tables

Bivariate data involves

• two values.

• two variables.

• two data displays.

• two data varieties.

A sample of university staff and students was asked whether they preferred catching public transport or driving their own car to university. The data collected is shown in the table. What percentage of university students prefer to drive their own car?

• 12%

• 15%

• 20%

• 40%

A store asked its junior and senior staff whether or not they would like to change the store uniform. The results are in the frequency table. Convert the two-way table into a percentaged two-way frequency table using column totals. What is the total number of people who chose “change uniform”

A store asked its junior and senior staff whether or not they would like to change the store uniform. The results are in the frequency table. Convert the two-way table into a percentaged two-way frequency table using column totals. What is the total number of people who chose “do not change uniform”

A store asked its junior and senior staff whether or not they would like to change the store uniform. The results are in the frequency table. Convert the two-way table into a percentaged two-way frequency table using column totals. What is the percentage of junior staff who also want the uniform changed?

A store asked its junior and senior staff whether or not they would like to change the store uniform. The results are in the frequency table. Convert the two-way table into a percentaged two-way frequency table using column totals. What is the percentage of senior staff who also don't want the uniform changed?

A store asked its junior and senior staff whether or not they would like to change the store uniform. The results are in the frequency table. Convert the two-way table into a percentaged two-way frequency table using column totals. What is the association?

• The data suggests junior staff want to change the uniform, but the senior staff don’t.

• The data suggests junior and senior staff both want to change the uniform.

• More people want to keep the uniform the same.

• A higher proportion of senior staff want to keep the uniform the same, than junior staff wanting the uniform to change.

Students were surveyed regarding their attitudes towards dancing and swimming. The resulting data is displayed in the table below.

Calculate how many students enjoy swimming.

Students were surveyed regarding their attitudes towards dancing and swimming. The resulting data is displayed in the table below.

Calculate how many students were surveyed.

Students were surveyed regarding their attitudes towards dancing and swimming. The resulting data is displayed in the table below.

Calculate the percentage of students who enjoy both activities. Express your answer correct to two decimal places.