DA tenta

The exercise was created 2021-10-16 by AdamNice. Question count: 9.

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  • 1. Two outcomes 2. Probability for x constant 3. independent events Conditions for Binomial
  • 1. low probability 2. many trials 3. independent r.vs 4. time period Poisson
  • Since number of X is Po(), the time until next X follows T~Exp() what to write when using ~Exp from Poisson
  • >5 How large must V(X) be to approx a Bin with ~N()
  • 1. N>30 2. independent rvs 3. identical prob. distributions conditions for normal distribution approx with central limit theorem
  • x~Bin() and x: n of successes When can P-hat approx by N()
  • mean: P variance: P(1-P)/n if p-hat approx N(), what is mean and variance?
  • X/n what is P-hat?
  • landa>16 when can you approx x~Po() with N()?

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