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Year 12 Maths Advanced (2027) Random variables

Discrete Random Variables & Probability Distributions

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Questions
Question 1
188738
For a set of probabilities \(P(x)\) to form a valid discrete probability distribution, the probabilities must:
A.
each lie in \([0,1]\) and sum to \(1\)
B.
each be greater than \(1\)
C.
sum to \(0\)
D.
all be equal
each lie in \([0,1]\) and sum to \(1\)

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