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junior college 2 | H2 Maths
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Please help with part (ii) and (iii). Thank you :)
Date Posted: 7 months ago
Views: 136
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done
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clear
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use standard formulas ...
E(X) =∑xP(X=x)
E(X^2 )=∑x^2 P(X=x)
Var(X)=E(X^2 )-[E(X) ]^2
E(X) =∑xP(X=x)
E(X^2 )=∑x^2 P(X=x)
Var(X)=E(X^2 )-[E(X) ]^2
Date Posted:
7 months ago
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