The mean of 11, 13, 18, y, 14, 21 and 26 is 17. Find the value of y.
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Step-by-step explanation:
11 + 13 + 18 + y + 14 + 21 +26 / 7 = 17
103 +y /7 = 17
103 + y = 119
y = 119 - 103
Y = 16
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