A-Level
AQA
Mathematics (UK)
October 2021
QP-202110-Mathematics-U5-Local · Question 16
Question (excerpt):
16 The discrete random variable X has the probability function P(X ¼ x) ¼ c(7 2x) x ¼ 0, 1, 2, 3 k x ¼ 4 0 otherwise 8 > > > > < > > > > : where c and k are constants. 16 (a) Show that 16c þ k ¼ 1 […
16 The discrete random variable X has the probability function P(X ¼ x) ¼ c(7 2x) x ¼ 0, 1, 2, 3 k x ¼ 4 0 otherwise 8 > > > > < > > > > : where c and k are constants. 16 (a) Show that 16c þ k ¼ 1 […
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