Box Plots Notes (7th Grade)

Divides a data set into 4 parts including the lower extreme, the lower quartile, the median, the upper quartile, and the upper extreme

• Samples

• Populations

• Box Plots

• Interquartile Range

The least/smallest value in a data set

• Lower extreme

• Lower quartile

• Median

• IQR

The median of the lower half of the data set

• Lower extreme

• Lower quartile

• Box Plot

• Middle quartile

The middle (median) of the whole data set

• Median

• Lower quartile

• Box Plot

• IQR

The median of the upper half of the data

• Upper quartile

• Upper Extreme

• IQR

• Median

The greatest/largest value in a data set

• Upper Extreme

• Upper Quartile

• Median

• IQR

The difference between the lower and upper quartile. The length of the box plot.

• Interquartile Range

• IRQ

• Median

• Extremes

According to the box plot the median score on the 6th grade math test was

• 85

• 68

• 79

• 93

According to the box plot the lower extreme score on the 6th grade math test was

• 85

• 68

• 79

• 93

According to the box plot the upper extreme score on the 6th grade math test was

• 85

• 98

• 79

• 93