imo class 12 probability

If X has distribution P(X=0)=0.4 and P(X=1)=0.6, then Var(X) is:

VAVidaara Admin Asked 8d ago 0 views 0 answers

If X has distribution P(X=0)=0.4 and P(X=1)=0.6, then Var(X) is:

  • A. 0.24
  • B. 0.36
  • C. 0.60
  • D. 0.16

Answer: A) 0.24

Explanation: E(X)=0.6, E(X²)=0.6. Var(X)=0.6−0.36=0.24.

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