M1
3 marks · average 1.4 30% scored 0
The question in our own words · page 10
\(X\) has probability density function \(f(x)=\tfrac38(4-3x)\) for \(0\le x\le\tfrac43\), and \(0\) otherwise. Find \(k\) such that \(\Pr(X>k)=\tfrac{9}{16}\). No calculator.
Source: VCAA 2025 VCE Mathematical Methods Examination 1, Question 8a
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