Statistics: Week 2



Week 2: mainly boxplots

Day 1:
Learn about pie charts and bar charts. Some time series too.

Pie charts can only be used when the total of the data adds up to 100%.

Bar charts looks like histograms, but the bars have spaces between them and they use categorical data.

Time series are just some variable plotted vs. time. It's like in physics.

Day 2:
Learn about the five-number summary and boxplots.

Five-number summary: min, Q1, median, Q3, max

Boxplots are graphs of the five-number summary.

Day 3:
Learn about modified boxplots and outliers.

Modified boxplots are exactly the same as normal boxplots, except that after you graph them, you graph the outliers as separate dots and have the lines extend to the max and min that are not outliers.

Outliers are values that are more than 1.5xIQR above Q3 or below Q1.

IQR stands for the interquartile range and is equal to Q3-Q1.

1.5xIQR is simply 1.5 times the IQR value.

Day 4:
Review

Day 5:
Quiz #1

Tests
This Week Tests: Quiz #1 on Friday

Future Tests: None