A-LevelMathematicsProbability and statisticsOct/Nov 2024Paper 6 Q36 Marks
The times, T minutes, taken by a random sample of 75 students to complete a test were noted. The results were summarised by Σt = 230 and Σt² = 930. You should now assume that your estimates from part (a) are the true values of the population mean and variance of T.
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