Numbers

By Kathleen Adams, Melissa August, Amanda Bower, Ellin Martens, Joseph Pierro, Sora Song, Joel Stein, Heather Won Tesoriero and Josh Tyrangiel

99 Percentage of parents surveyed who have a smoke alarm in their home

72 Percentage who put caps on electrical outlets

43 Percentage of those surveyed who own guns and keep them in a locked compartment

$205.94 Average cost of gas needed to drive a Lincoln Navigator from Minneapolis, Minn., to Los Angeles, Calif.

$124 Cost of a Greyhound bus ticket between the two cities

$99 Average cost to fly on a major airline

800 Number of Iranian citizens who applied to run for President in the country's June 8 election

10 Number of those officially granted permission by Iran's Council of Guardians

0 Number of official candidates who are women or politically liberal

Sources: University of North Carolina School of Medicine; AAA.com Ford.com MapQuest.com Greyhound.com Travelocity.com New York Times