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The mean of six numbers is calculated. The deviations of the numbers from the mean are: -4, 5, -3, -2, d, 1. Determine the value of d and hence find the exact variance of the numbers. (3 marks) - ATIKA SCHOOL

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The mean of six numbers is calculated. The deviations of the numbers from the mean are: -4, 5, -3, -2, d, 1. Determine the value of d and hence find the exact variance of the numbers. (3 marks) - ATIKA SCHOOL

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