Read the article "The School Bully is Sleepy[+]" and the abstract following it, then answer the following question. Theoriginal studycan be found at the NCBI (The National Center for Biotechnology Information) website.

The article mentions that "The researchers found that children who had behavioral issues were twice as likely to have shown symptoms of sleep-disordered breathing, like snoring or daytime sleepinesss." That statement was based on the following table:

SDBNo SDBTotalConduct problems3377110No conduct problems32199231Total65276341

a) What proportion of those children with conduct problems had symptoms of sleep-disordered breathing?

b) What proportion of those children with no conduct problems had symptoms of sleep-disordered breathing?

c) What is the ratio of the proportions of symptoms of sleep-disordered breathing between those with conduct problems and those without?

Hint: Part (c) is asking you to take your answer in part (a) and divide by your answer in part (b).