, Exam Page 1
Look at the following data and see if you can identify any outliers:
221 229 222 237 245 219 19 15 255 267 210 1080
Answer Key
Look at the following data and see if you can identify any outliers:
221 229 222 237 245 219 19 15 255 267 210 1080
The outliers are: 19 15 1080
Exam Page 2
Consider the following set of data:
{20, 5, 12, 29, 18, 21, 10, 15}
a) Find the median.
5,10,12,15,18,20,21,29 (8 numbers- even)
15+18=33
33/2=16.2
Median: 16
b) Find the mode of this set.
none: no frequent number is present in this date.
Answer Key
a) Find the median.
a) In order to find the median, we must first put the numbers in
ascending order: 5, 10, 12, 15, 18, 20, 21, 29.
Notice that there are two “middle” numbers, 15 and 18. The median is the average
of these two numbers. Median = (15+18)/2 = 16.5.
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