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June 2019 Paper 72 - Statistics 2
In this session, the June 2019 S2 Paper (Paper 72) is discussed with full explanation.
The following concepts are discussed:
Question 1 - Poisson distribution
- Poisson distribution with unknown number of trials (n)
Question 2 - Distribution of Sample Means (X-bar)
- Central Limit Theorem
Question 3 - Unbiased Estimates to Population Mean µ and Population Variance σ2
- Hypothesis Testing of Population Mean µ ; Lower-tail test
Question 4 - Linear Combination of Normal Variates
- Normal distribution
Question 5 - Hypothesis Testing of Population Proportion p ; Lower-tail test
- Type I Error in hypothesis testing and probability of making the error
- Confidence Interval for Population Mean µ
- Interpretation of Confidence Interval
Question 6 - Continuous Random Variables
- Median of a Continuous Random Variable
- Expectation E(X) of a Continuous Random Variable
Question 7 - Poisson Approximation to a binomial distribution
- Conditions for Poisson Approximation
- Hypothesis Testing of Poisson Mean (λ) ; Lower-tail test
Notes (Answers) and the Question Paper are available in the documents section
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Session 41: June 2019 Paper 72 - S2
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June 2019 Paper 72 - S2
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Question 7 7 mins
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Demo video
Question 7
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Question 6 4 mins
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Question 6
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Question 5 7 mins
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Question 5
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Question 4 6 mins
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Question 4
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Question 3 5 mins
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Question 3
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Questions 2 and 1 5 mins
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Demo video
Questions 2 and 1
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Question 7 7 mins
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June 2019 Paper 72 - S2
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Excercise Files
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