Variation

Why do we need to study the variation of a collection of data?

Chebyshev’s Theorem

Write a paragraph to describe Chebyshev’s Theorem to a friend that knows very little about statistics.

Measures of central tendencies.

An average is an attempt to summarize a collection of data into just one number. List three areas of daily life where you think either the mean, median or mode would be the best choice to describe an “average.”