Gallery Problems Exercise

No Telephone

Work Time

No Telephone

For each one of the 50 states, the U.S. Census Bureau reports the percent of households without a telephone. Some states have a higher percent of households without a telephone. Other states have lower percentages.

The box plots summarize these state-by-state data for two different years—1960 and 1990.

  1. What do the box plots tell you about how telephone ownership in the 50 states changed from 1960 to 1990? Give as much specific information as you can.