MA6 Mod 6 Statistics

Interquartile Range (IQR)

the difference between the upper quartile and the lower quartile of a a data set

absolute deviation

the distance between each data point and the mean

box (box and whisker) plot

a diagram that shows five data points in a visual way

dot plot

a graphical display of data using points

frequency

the number of times a value of the data occurs

histogram

a graph or vertical bars representing the frequency distribuition of a set of data

mean

the number evaluated when you add values and divide by the number of values

Mean Absolute Deviation (MAD)

the average distance between each data value and the mean

median

the middle value in a set of numbers when listed in order

mode

the value that occurs most frequently in a data set

variability

how much the values in a data set are different from each other

statistical question

a question that can be answered by collecting data and that has a variety of answers

peak

the highest point of a set of data

gap

a space between data

cluster

a grouping of data

outlier

a value much greater or much less than the rest of the data

range

the difference between the highest and the lowest data point