If the mean of the following data is 9, then find the value of k.
11, (k - 2), 7, (k - 1), 11, 16, 12, 15, (k - 1), 13
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4
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5
3
3
4
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If the mean of the following data is 9, then find the value of k.
11, (k - 2), 7, (k - 1), 11, 16, 12, 15, (k - 1), 13