QUES TION 4 Since 1953, when Tenzing Norgay and Edmund Hillary reached the summi

Question

QUES TION 4 Since 1953, when Tenzing Norgay and Edmund Hillary reached the summit of Mount Everest, many climbers have attempted to scale the world's two highest mountains, Everest and K2. Norgay and Hillary aided their climb by bringing supplemental oxygen in tanks, and some later groups have attempted to outdo the originals by trying the ascent without supplemental oxygen. From 1978 to 1999, in fact, 159 teams have attempted to climb Mount Everest or K2. The numbers of individuals who either survived or died during those attempts is given in the following table (data is hypothetical and not the exact numbers observed by Huey and Eguskitza 2000). Survived Did Not Survive 12 25 197 104 Calculate the odds ratio and round your answer to two decimal places

Explanation / Answer

here as we knw that odds ratio (surival ratio on supplement)/(not survival ratio on supplement)

=(12/197)/(25/104)=0.25

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