Edexcel S2 tutorial 5 - Normal Approximations

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A crash course on the normal approximation
  1. MrArnoldsMaths
  2. Edexcel
  3. a level
  4. tutorial
  5. s2
  6. statistics
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Sir, at 5:46, you mentioned that n must be large and "p close to 0.5" to use approximate a normal distribution to a binomial. But in the example that follows, p is nowhere close to 0.5 (p is 0.06; n is large though)...so is it just that the accuracy of the approximation will improve if it is used in cases where p ~ 0.5 and that it can be used anyway, even if p not close to 0.5 as well?

Thank you (:

Sidant