*TVs and DVDs. According to Nielsen Media Research, 98.6% of (U.S.) households own a TV and 85.2% of TV households own a DVD player. a. Under what condition can you use the information provided to...

*TVs and DVDs.
According to Nielsen Media Research, 98.6% of (U.S.) households own a TV and 85.2% of TV households own a DVD player.

a. Under what condition can you use the information provided to determine the percentage of households that own a DVD player? Explain your reasoning.

b. Assuming that the condition you stated in part (a) actually holds, determine the percentage of households that own a DVD player.

c. Assuming that the condition you stated in part (a) does not hold, what other piece of information would you need in order to find the percentage of households that own a DVD player?