Which statement is true about this data set? {70, 67, 66, 65, 66, 78, 68, 71, 80, 78, 72}

80 is an outlier because it is greater than the upper fence.

This data set has no outliers.

65 and 80 are both outliers because 65 is less than the lower fence and 80 is greater than the upper fence.

65 is an outlier because it is less than the lower fence.
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