How much of an effect does an outlier have on the shape of the histogram?

What is the approximate percentage of people with Group Ablood? Assuming that the pie chart is basedon a sample of 500 people, approximatelyhow many of those 500 people have Group A blood?

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Possible answers:

50%; 250

30%; 150

40%; 200

45%; 225

List the original data set points.

Stem Leaves

(tens) (units)

20 0005

21 69999

22 2233333

23 ----

24 1177