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Determine the probability that a value of $X$ chosen at random is below $-2.4$.
Mathematics 9709 · AS & A Level · Continuous random variables
Continuous random variables — practice question
It is known that $X \sim N(1.5, 3.2^2)$.
Worked solution & mark scheme
This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: “After standardising, $P\left(z<\dfrac{-2.4-1.5}{3.2}\right)$” …
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