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When we arrange data in increasing order, middle value is the mean.
Statement 1; doesn't tell us what middle value might be. Thus insufficient.
Statement 2: give us all the data. Here if we arrange increasing order, 0,1,3,4,4,5,5,6 We can clearly see, 4 is middle value and thus mean. Thus it is sufficient.
Answer is B
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When we arrange data in increasing order, middle value is the mean.
Statement 1; doesn't tell us what middle value might be. Thus insufficient.
Statement 2: give us all the data. Here if we arrange increasing order, 0,1,3,4,4,5,5,6 We can clearly see, 4 is middle value and thus mean. Thus it is sufficient.
Answer is B
Posted from my mobile device
Correction : middle value is the median and not the mean
Mean = \(\frac{Sum of Values}{number of values}\)
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