What can be determined about this data set before finding the range or the interquartile range? 19, 25, 35, 38, 41, 49, 50, 52, 99
Accepted Solution
A:
Given: 19, 25, 35, 38, 41, 49, 50, 52, 99
Just upon looking at the data set, I can determine that there is an OUTLIER. An outlier is a point that is distant from other points.
The outlier in this data set is number 99.
These data set has the following five number summary: 1) minimum number - 19 2) 1st quartile - 30 3) 2nd quartile or median - 41 4) 3rd quartile - 51 5) maximum number - 99
Interquartile range = q3 - q1Β β 51 - 30 = 21Β
To determine if an observation point is an outlier, we need to determine the lower fence and the upper fence.