1, 1, 1, 1, 1, 2, 3, 3, 4, 5, 5, 18
What is the middle number?
Twelve randomly-chosen students were asked how many times they had missed class during a certain semester, with this result: 2, 1, 5, 1, 1, 3, 4, 3, 1, 1, 5, 18.
For this sample, the median is _____.
A. 2.5
B. 3
C. 3.5
D. 2
need help please
3 answers
oh got it sorry I pasted the wrong question
When there is not middle number, as here, average the two closest to the middle.
http://en.wikipedia.org/wiki/Median
http://en.wikipedia.org/wiki/Median