Statistics and Probability

Values that divide a list of numbers into quartiles.

A graph of five numerical summary measures.  

The smallest and largest value.

The range of a sample is difference between the largest and smallest value.

A measure of variability appropriate for data distributions that are skewed. 

Occurs when the observations in the data set are not all the same.

A graphical display where the data is grouped into ranges, and then plotted  as bars. 

Can be answered by collecting data and where there will be variability in that data. 

 largest or smallest in a data set

A value that lies " outside" 

The number that appears most often in a set of numbers.

The average of numbers.

The middle number

The number which appears most often in a set of numbers.