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junior college 2 | H1 Maths
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Jeanette Tan
Jeanette Tan

junior college 2 chevron_right H1 Maths

How do u do the combining sample qn? The first qn, 5 marks wan? Pls hlp, thx

Date Posted: 5 years ago
Views: 332
Tham KY
Tham KY
5 years ago
Try E(combined) = E(X) + E(Y),
Var(combined) = Var(X) + Var(Y)...