OCR A LEVEL MATHEMATICS MATHS B PAPER 2 H640/02
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OCR A LEVEL MATHEMATICS MATHS B MEI PAPER 2 H640/02: FINAL MARK SCHEME JUNE 2022; PURE MATHS AND STATISTICS. decreasing concave up curve in 1st and 2nd quadrants which does not cut the x-axis; mark intent decreasing curve with intercept (0,3); may be in one quadrant only smooth֠curve֠from֠(‒0.5,֠a) through (2.5, b), where 4.5֠≤֠a ≤֠5֠and֠0֠<֠b < 0.5 Venn diagram with 2 overlapping regions and 0.22 correctly placed; condone incorrect or no labelling all probabilities...