Right-skewed data Name:________________
Some data distros
https://davidwills.us/stat200/data_distros.txt
n=200 right-skewed 0-100 data
freq dist, histogram, stats ***
n= 200 mean=______ median=_____ mode=_____ SD s=________
In a right-skewed distribution: mode __ median __ mean
The boxplot shows that the mean is __ median
For skewed data the median is a better representative than the mean.
Sketch the boxplot:
Boxplot symmetric?:___ 4th quartile is very ______
The quartiles get progressively longer.
#outliers on the right by the ≥1.5*IQR method:___
What is the mean+2s cutoff for "statistically significant" data:______ #datums:___
The "stickgram" shows the right-skewness: bunched up on the left,
getting sparser and sparser as it goes to the right.
We have one duplicate datum:_____ A lucky number?
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 (ordinal number)
median is in the ______ class
mean is in the ______ class
(this pattern won't necessarily exist with different class widths or with other data sets)
Looks perfectly right-skewed except for the class of ______. Random chance happens.