A school collects data on the weight of each student in two classes in order to compare the classes.
Is this an example of univariate data or bivariate data?
A scientist collects data on iron levels in soil and growth of a type of weed in order to investigate the relationship between them.
A school collects data on the shoe size of each student in the school.
A hockey club collects data on time travelled to get to training from members of three teams in order to compare them.
Use scatter plots to investigate and comment on relationships between two numerical variables