Melbourne’s 2nd wave

of confirmed COVID cases

starts to gently drop

Michael Leach

Monash University School of Rural Health

## Category: High School: Statistics and Probability

## Seasonality

this seasonal trend

heightened penicillin use

plunges in summer

Michael Leach

Monash University School of Rural Health

## Correlation

Take correlation

For causation and find out

Ice cream causes crime

Jeremy Redlien

## Birthdays

Forty-two students

Greg Warrington

compare i.i.d. birthdays.

Surprise! No two share.

## Outliers

Mean outliers bark

like hound dogs for our notice.

It’s just a squirrel.

David Carroll

Many data sets in the real world such as opinion surveys or rainfall amounts contain outliers — a value well outside the “typical grouping”. When using the average, or “mean”, to describe the data, a single outlier has a large effect on the average. When we provide a median value along with the mean it help people better understand the story being told by the data without being distracted by the barking dogs. –David Carroll

## Sample

a population

is studied with a sample –

field of statistics

Valentina Ranaldi-Adams

## Size

size in statistics –

from the population N

choosing sample n

Valentina Ranaldi-Adams

## Chi-ku

Categorical

variable tests need a

contingency plan.

Lawrence M. Lesser

originally published by Consortium for Advancement of Undergraduate Statistics Education