Name ______________________________________________ Box ...



Name ______________________________________________ Box-Whisker 2

Box and Whisker Plot Vocabulary

Minimum – the lowest value that occurs in a data set

Maximum – the highest value that occurs in a data set

Median –  the number that lies in the middle when a set of numbers is arranged in order. If there are two middle values, the median is the mean of these values.

Range – the difference between the maximum and minimum values

Quartile – those percentiles that divide the data into fourths

First Quartile –  the median of the lower half of the data

Second Quartile – the median

Third Quartile – the median of the upper half of the data

Outlier – values that stand by themselves away from most of the data

Interquartile  Range –  difference between third and first quartile

Five Number Summary – Lowest value, Q1, median,  Q3, and highest value

Draw a Box and Whisker Plot for the following Science Chapter test scores. 78, 95, 92, 72, 54, 88, 100, 70, 84, 79, 86, 94

14. Arrange the test scores from least to greatest.

15. Identify the values in the Five Number Summary.

Minimum: __________

First Quartile (Q1): __________

Median/Second Quartile (Q2): __________

Third Quartile (Q3): __________

Maximum: __________

16. Plot the values, then draw the box and whisker plot.

The following box-whisker plot shows the calories in a large french fry at McDonalds, Burger King, Wendy, and Arby’s. This graph compares regular fries with specialty fries at these establishments.

[pic]

Based on the data in the above box-and-whisker plot, what conclusions can be drawn with regard to the calories in regular french fries versus specialty french fries in fast food establishments?

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0

10

20

30

40

50

60

70

80

90

100

Specialty

Regular

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