12 terms

measures of center

numbers that can be used to describe the center of data

mean

the sum of the data divided by the number of values of data

outliers

extremely high or low values in a data set

range

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

median

the middle number in a data set

quartiles

values that divide the data set into four equal parts

mode

the number or numbers that occur most frequently in a data set

average

the measure of center also known as the mean

measures of variation

numbers used to describe how spread out the data is

first quartile

the median of the lower half of the data

third quartile

the median of the upper half of the data

mean absolute deviation

how far from the mean each data value is