CEED 2022
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Q9.A virus has two variants P and Q. Two treatments L and M were developed against variant P and Q and tested through four independent trials. Treatment L: 44 successes/50 against P, 81 successes/100 against Q, 125/150 total. Treatment M: 94 successes/100 against P, 31 successes/50 against Q, 125/150 total. Assuming both variants are equally prevalent and both treatments cost about the same, but a given patient can be treated with only one treatment, which of the options is/are true?
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Q11.Mobile sculptures are created by tying fish-shaped cut-outs of different colours using blue strings on brown sticks of negligible weight, as shown below. All the fish cut-outs are of the same size and weight. Which of the options will remain balanced after suspending from a ceiling?