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