Mathematics (AS & A Level) · May / June 2017 · Paper 62 · Question 3
9709
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The question as text
In a probability distribution the random variable X takes the value x with probability kx2, where k is a constant and x takes values −2, −1, 2, 4 only.
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3(i)[1]
3(ii)[3]
3(iii)[2]
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