Data Analysis Box and Whisker Plot

What does point C on the box plot represent?

• Lower Quartile (Quartile 1)

• Median

• Upper Quartile (Quartile 3)

• Mean

What is the range of this data set?

• 6

• 12

• 13

• 19

Interquartile Range is

• The difference between the upper quartile and the lower quartile.

• The difference between the greatest and least data values.

Which box and whisker plot shows more "spread out" data?

• Top plot

• Bottom plot

Match the following terms with their definitions

• Middle of the data set. Half the data (50%) lies below this value and half (50%) lies above.

• First Quartile (Q1)

• Middle of the lower half of the data set. 25% of the data lies below this value and 75% lies above.

• Third Quartile (Q3)

• The highest value of the data set

• Maximum (Max)

• Middle of the upper half of the data set. 75% of the data lies below this value and 25% lies below.

• Median (Q2)

• The lowest value of the data set

• Minimum (Min)

You must find the 5 number summary in order to make a box and whisker plot.

• True

• False

What percentage of the data is between 40 and 150?

• 25 %

• 50%

• 75%

• 100%

What percentage of the data is between 40 and 90?

• 25 %

• 50%

• 75%

• 100%

What is the minimum value (least value)?

• 64

• 58

• 66

• 60

What value is the lower quartile?

• 66

• 58

• 60

• 64