May/June 2026 Paper 62

2026 · 7 questions · 15 parts · 50 marks

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1Point Estimation Unbiased EstimatorsMedium3 marks
Ten random values of a variable are given below. 8.1, 8.3, 9.5, 10.1, 7.9, 8.7, 9.1, 8.8, 9.4, 9.0 Calculate unbiased estimates of the population mean and variance of .
Unbiased estimate of the population mean
Show your method for the variance
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Unbiased estimate of the population variance