Question

ch 2 which group has the largest spread?
textbook costs ($)
married gender
single
married
single
married
male
female
married males
single females
married females
single males

Explanation:

Step1: Identify spread in box - plot

The spread of a box - plot can be measured by the inter - quartile range (IQR) or the range (maximum - minimum). Visually, we can look at the length from the minimum to the maximum value (including the whiskers).

Step2: Compare spreads of groups

For married males, single males, married females, and single females, we observe the box - plots. The box - plot for single males has the longest length from the bottom of the lower whisker to the top of the upper whisker.

Answer:

single males