2018年9月英国精算师-概率论与数理统计真题

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  20 September 2018 (am)


  Subject CT3 – Probability and Mathematical Statistics Core Technical


  1 A data set of 20 observations has mean 45 and standard deviation 25.4. The data set is reviewed and one observation which was incorrectly recorded as 130 is now corrected to 30.


  Determine the mean and standard deviation of the corrected data. [4]


  2 A random variable, X, has the probability generating function GX(t) where



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