The mean of 2,5,X, 7,12 is 15. Find X.
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Step-by-step explanation:
Mean height = Sum of the heights of the runners/number of runners
= (160 + 137 + 149 + 153 + 161)/5 cm
= 760/5 cm
= 152 cm.
Hence, the mean height is 152 cm.
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Answer:
The mean of 2,5,X, 7,12 is 15. Find X. answer is 49
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