Question

48 patterns of association test*
the box - and - whisker plots below show the distribution of heights of plants (in centimeters) in the three rows of a garden.
plant heights in row 1
box - and - whisker plot with x - axis from 10 to 100, labeled heights of plants (in centimeters)
plant heights in row 2
box - and - whisker plot with x - axis from 10 to 100, labeled heights of plants (in centimeters)
plant heights in row 3
box - and - whisker plot with x - axis from 10 to 100, labeled heights of plants (in centimeters)
which list shows the rows in order from least to greatest range of plant heights?

• row 3, row 2, row 1
• row 2, row 3, row 1
• row 2, row 1, row 3
• row 1, row 2, row 3

Explanation:

Step1: Calculate range for Row1

Range = Max - Min = 90 - 20 = 70

Step2: Calculate range for Row2

Range = Max - Min = 90 - 20 = 70

Step3: Calculate range for Row3

Range = Max - Min = 100 - 20 = 80

Step4: Order ranges least to greatest

Row1/Row2 (70) < Row3 (80). Check options: Row2, Row1, Row3 matches.

Answer:

Row 2, Row 1, Row 3