Please help figure this questions out?

Of the 2,201 people on the RMS Titanic, only 711 survived. The practice of \"women and children rst" was rst used to describe the chivalrous actions of the sailors during the sinking of the HMS Birkenhead in 1852, but became popular after the sinking of the Titanic. during which 53% of the children and 73% of the women survived. but only 21% of the men survived. Part of the protocol stated that passengers enter lifeboats by ticket class as well. The table below displays the survival by ticket class and crew. First Second Third Crew Total Survived 203 1 18 1 78 2 12 7 11 Perished 122 167 528 673 1,490 Given that a passenger {not crew] perished, what is the probability that they had a third-class ticket? Do not round intermediate calculations. Round your nal answer to four decimals. Format for probabilities: 0.0000