Unit 1 Vocabulary Review

A value much greater or much less than the others in a data set

The sum of the items in a set of data divided by the number of items in the set.

The middle number or the mean of the two middle numbers in ordered set of data.

The number or numbers that occur most frequently in a set of data.

The difference between the greatest and least values in a data set

The difference of the third (upper) and first (lower) quartiles in a data set, representing the middle half of the data.

A graph that shows how data are distributed by using the median, quartiles, least value, and greatest value.

A bar graph that shows the frequency of data within equal intervals.

How data is arranged or spread out on a graph. This can describe if a set of data is skewed or symmetrical.

A visual display in which each piece of data is represented by a dot above a number line.