A-Level
AQA
Mathematics
January 2020
QP-202001-Mathematics-US2 · Question 1
Question (excerpt):
*02* IB/G/Jan20/MA04 1 (b) Find 3 1 Var i i X = ∑ [1 mark] Answer 1 The continuous random variable X1 has mean 2 and variance 3 The continuous random variable X2 has mean 5 and variance 1 …
*02* IB/G/Jan20/MA04 1 (b) Find 3 1 Var i i X = ∑ [1 mark] Answer 1 The continuous random variable X1 has mean 2 and variance 3 The continuous random variable X2 has mean 5 and variance 1 …
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