QUESTION 2 The change in smell sensation attributed to COVID-19 by smoking status in a sample of positive cases in UAE is summarized below: Change in smell sensation Smoking Extreme Reduction Moderate Reduction No Change No 126 34 230 Yes 31 8 50 If a randomly selected case is experiencing extreme reduction in smell sensation, what is the probability that he/she is a smoker Round your answer to four decimal places.

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Q: Placebo New Treatment 134 114 143 117 148 121 142 124 150 122 160 128

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