Victoriag2626
21.02.2020 •
Mathematics
A hiker has gone missing. The hiker took one of three trails: A, B, or C. Due to the popularity of the trails, it is assumed that the (prior) probabilities of the hiker taking these trails are 0.4 (A), 0.1 (B), and 0.5 (C). Each trail has a different terrain, so the probability of successfully finding the hiker, if there, is 0.6 (A), 0.85 (B), and 0.55 (C). Because C is the most commonly hiked trail (even though it is the hardest to search), a search is conducted along trail C. Ultimately, the search turns out to be unsuccessful (either the hiker is not there, or the hiker was well hidden and the search failed).
**Given that the search along trail C was unsuccessful, what are the posterior probabilities that the hiker is along trail A? B? C?**
For this question, you are free to pick your approach (though the Bayes Theorem approach gets particularly notation heavy). Do your work by hand on paper (or in Excel), take a picture with your phone (or screenshot), then after knitting insert that picture into your Word document. If you use the Table Method, I suggest labeling the columns "seach C unsuccessful" and "search C successful"
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Ответ:
The GCF is 3xy.
Step-by-step explanation:
3xy is common to both expressions.