IB
IBO
Mathematics AA
May 2022
QP-202205-Mathematics AA-P2(TZ1)-SL · Question 4
Question (excerpt):
4. [Maximum mark: 6] A discrete random variable, X , has the following probability distribution: x 0 1 2 3 P (X = x) 0.41 k - 0.28 0.46 0.29 - 2k2 (a) Show that 2k2 - k + 0.12 = 0 . [1] (b) Find the …
4. [Maximum mark: 6] A discrete random variable, X , has the following probability distribution: x 0 1 2 3 P (X = x) 0.41 k - 0.28 0.46 0.29 - 2k2 (a) Show that 2k2 - k + 0.12 = 0 . [1] (b) Find the …
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