This applet draws a sample from a population that is chosen to be
symmetric, skewed-left, or skewed-right.
How to use the applet
- At the top, choose from a skewed-right, symmetric, or
skewed-left dataset. The symmetric data set is drawn from
, the
skewed-right data is drawn from
,
and the skewed-left data is drawn from
, where
. Each
of the three populations has a mean of 0 and a variance of 2.
- Click "Generate New Data" to generate 200 new samples.
- A histogram below the samples is plotted, and the mean and median
are labeled in red and black,
respectively.
- Below the histogram, the mean, standard deviation, median, 5%
trimmed mean, 10% trimmed mean, and 20% trimmed mean of the dataset
are shown.
The applet