Right-skewed data
Copy and paste from
Some data distros
n=200 right-skewed 0-100 data
into
freq dist, histogram, stats ***
n=___ mean=______ median=_____ mode=_____ SD s=________
In a right-skewed distribution: mode __ median __ mean
The boxplot shows that the mean is __ median
Median is a better representative than the mean.
Sketch the boxplot:
Boxplot symmetric?:___ 4th quartile is very ______
#outliers on right by the ≥1.5*IQR method:___
What is the mean+2s cutoff for "statistically significant" data:______
The "stickgram" shows the right-skewness: bunched up on the left,
getting sparser and sparser as it goes to the right.
Sketch the histogram from 0 to 100, class width 10.
Annotate each class's bar with its frequency.
This data's mode is in the ______ class
median is in the ______ class
mean is in the ______ class
(this pattern won't exist with different class widths or with other data sets)