A-Level
CAIE
Mathematics
May 2023
QP-202305-Mathematics-P53 · Question 3
Question (excerpt):
3 The random variable X takes the values 1, 2, 3, 4. It is given that P X = x = kx x + a, where k and a are constants. (a) Given that P X = 4 = 3P X = 2, find the value of a and the value of k. [4]…
3 The random variable X takes the values 1, 2, 3, 4. It is given that P X = x = kx x + a, where k and a are constants. (a) Given that P X = 4 = 3P X = 2, find the value of a and the value of k. [4]…
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