Mathematics
Mathematics, 08.01.2021 01:30, milkshakegrande101

At a popular rock-climbing site in Yosemite National Park, a randomly selected sample of 200 climbers are asked whether they have ever had a climbing accident and whether they are certified climbers. The results are shown below. Suppose you are searching for a climbing partner at Yosemite and you meet Rob, Andrew, and Sarah. Rob thinks of himself as a free spirit -−minus he climbs without any certification. Andrew is hoping to continue his life-long streak of never having a climbing accident. You don't know anything about Sarah.
Use the frequency table below to calculate the following probabilities.
Round to the nearest hundredth of a percent.

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At a popular rock-climbing site in Yosemite National Park, a randomly selected sample of 200 climber...

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