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Edexcel A-Level Mathematics A2 S2.1.2 Mean and Variance of Binomial and Poisson Distributions Questions

Practise calculating binomial means and variances, and use the Poisson mean-variance relationship with verified Edexcel IAL questions.

Syllabus
First assessment 2019
Course
Mathematics YMA01
Level
A2

Exam points

  • calculate E(X)=np and Var(X)=np(1-p) for binomial variables from given parameters
  • state the Poisson variance from its mean and use expected frequencies in tables

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