What do you know about this data before finding the range or the interquartile range?
187, 191, 202, 209, 218, 1984
The values are not in order.
The outlier will have no affect on the range,
The data has an outlier, therefore the interquartile range is much greater than it would be without the outlier.
The data has an outlier, therefore the range will be much greater than it would be without the outlier.