A-LevelMathematicsProbability and statisticsOct/Nov 2021Paper 6 Q59 Marks
(a) The proportion of people having a particular medical condition is 1 in 100000. A random sample of 2500 people is obtained. The number of people in the sample having the condition is denoted by X. (b) The percentage of people having a different medical condition is thought to be 30%. A researcher suspects that the true percentage is less than 30%. In a medical trial a random sample of 28 people was selected and 4 people were found to have this condition.
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