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23-06-2024
Mathematics

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a mass of 1 nne. In a test out of 40, the marks of 15 students Q In were 31, 18, 6, 26, 36, 24, 23, 14, 29, 28, 32, 9, 11, 22, 21. a Calculate the mean mark for the test. b Express the mean mark as a percentage
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