AP Statistics mid-term Interpretations

Describe an association of a Categorical variable

1) There is an association. 2) Knowing … helps us predict … 3) For example, a higher proportion of … prefer … than …

Compare two categorical variables

1) Compare frequencies 2) Compare relative frequencies

Describe a distribution

Shape, Center, Variability, and Outliers in context

Comparing two distributions

SOCS using comparison words

Mean

If we take many many samples of … we’d expect an average of about …

Higher or Lower mean of two same median

1) Give answer 2) A and B in context have the same median 3) Shape of both and how the mean increase/decreases/or about same as median

What happens to mean/median/IQR if a data point is switched

Mean: Point is greater than original point, it increases, less than it decreases.

Median: Switched points leave median unchanged unless the median number is changed

IQR: Changes whether the replaced number is higher or lower than previous minimum/maximum