A.3.1.3 Running to the Dentist

Jada wonders if listenting to music helps her run a 5K distance faster. If you were told that Jada ran with headphones on a total of 10 times, what other information could you fill into the table?

If you were also told that 10 of Jada's runs that took 25 minutes or longer were completed without headphones on, what more information could you fill into the table?

Among the runs that took under 25 minutes, what fraction of them were completed without headphones on?