QUESTION IMAGE
Question
the graph shows the number of pages in each chapter of a book that josh is reading. chapter page counts which statement is true about the effect of the 2 - page introduction chapter? the outlier of 2 increases the median page count the outlier of 2 increases the mean page count the outlier of 2 decreases the median page count the outlier of 2 decreases the mean page count
Step1: Recall effect of outlier on mean and median
Mean is affected by extreme values. Median is the middle - value.
Step2: Analyze the outlier of 2
The outlier 2 is a low - value. Mean is the sum of all values divided by the number of values. A low outlier will decrease the sum and thus decrease the mean. The median may or may not be affected depending on the number of data points. But in general, for a set of data with a relatively small number of points, a single low outlier like 2 will not change the median much or at all. Here, the outlier of 2 will decrease the mean page count.
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The outlier of 2 decreases the mean page count