Bivariate Data definitions

What is bivariate data?

• Data that involves two variables

• Data that involves one variable

• Data about twins

• Data that is released twice a year

Tags

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.8

What is primary data?

• Data you collect yourself

• Data already collected by someone else

• Data about primary school students

• The first data point on a scatter plot

What is secondary data?

• Data you collect yourself

• Data already collected by someone else

• Data about high school students

• Poor quality data

What is a population?

• Everyone in the group you are researching

• A survey of everyone in the group you are researching

• A small proportion of the group you are researching

• A fraction of the group you are researching

What is a census?

• Everyone in the group you are researching

• A survey of everyone in the group you are researching

• A small proportion of the group you are researching

• A survey of a small proportion of the group you are researching

What is a sample?

• Everyone in the group you are researching

• A survey of everyone in the group you are researching

• A small proportion of the group you are researching

• All the people who didn't fill in the survey

What is correlation? (more than one correct answer)

• A relationship between two variables

• When bivariate data resembles a straight line

• A cause-and-effect relationship between two variables

• Two statisticians who are married

What is causation? (more than one correct answer)

• A relationship between two variables

• When bivariate data resembles a straight line

• A cause-and-effect relationship between two variables

• When change in one variable causes change in another variable

What is the independent variable? (more than one correct answer)

• The variable displayed on the x-axis

• The variable displayed on the y-axis

• The variable that you can choose or control

• The variable that is different to all the rest

Describe the strength, direction and type of trend.

• Strong, negative, linear relationship

• Weak, negative, linear relationship

• Strong, positive, linear relationship

• Non-linear relationship