The median of 7, 5, 8, x, 12, 17 is 10, then what is the value of x?
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Correct answer: (D) 12
Explanation
With six values, median = mean of 3rd and 4th values. Taking x between 8 and 12, the ordered list is 5, 7, 8, x, 12, 17, so (8 + x)/2 = 10, giving x = 12.