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Calculate the value of $y$.
Mathematics 0580 · IGCSE · Averages and measures of spread
Averages and measures of spread — practice question
Jim obtains the following marks in 8 tests:
$7, 8, 8, y, 6, 9, 10, 5$. His mean mark is $7.5$.
Worked solution & mark scheme
This 2-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Correct calculation of $7.5 \times 8$ or an equivalent mean method” …
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