Mathematics
21 Online
OpenStudy (anonymous):
Based on the graph shown, which of the following statements is true?
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OpenStudy (anonymous):
median < mode
median = mode
median > mode
jimthompson5910 (jim_thompson5910):
What is the mode here?
OpenStudy (anonymous):
i dont have a calculator so im not sure
jimthompson5910 (jim_thompson5910):
The mode is simply the most frequent value. No calculator is needed.
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OpenStudy (anonymous):
oh i thought it was average
OpenStudy (anonymous):
12
jimthompson5910 (jim_thompson5910):
how are you getting 12?
OpenStudy (anonymous):
there are to bars that go up to 12
OpenStudy (anonymous):
what did you get
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jimthompson5910 (jim_thompson5910):
Is that the highest it goes?
OpenStudy (anonymous):
then 18
jimthompson5910 (jim_thompson5910):
which corresponds to what color?
OpenStudy (anonymous):
red
jimthompson5910 (jim_thompson5910):
and that red block corresponds to what number on the x-axis?
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OpenStudy (anonymous):
300
jimthompson5910 (jim_thompson5910):
so the mode is 300
jimthompson5910 (jim_thompson5910):
since it occurs the most at 18 times
OpenStudy (anonymous):
yup
jimthompson5910 (jim_thompson5910):
now how do you find the median?
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OpenStudy (anonymous):
u cross out each one till u get to the middle #
jimthompson5910 (jim_thompson5910):
good
jimthompson5910 (jim_thompson5910):
so the median is....?
OpenStudy (anonymous):
8
jimthompson5910 (jim_thompson5910):
no, the value of 8 isn't even in the data set
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OpenStudy (anonymous):
9 sorry
jimthompson5910 (jim_thompson5910):
neither is 9
OpenStudy (anonymous):
10
OpenStudy (anonymous):
is the answer
jimthompson5910 (jim_thompson5910):
no, the median is not 10 either
Keep in mind that your data set is {100,200,300,400,500,600,700}
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OpenStudy (anonymous):
so 400
jimthompson5910 (jim_thompson5910):
no, use the method you described to find the median
OpenStudy (anonymous):
ok i give up i did use that
jimthompson5910 (jim_thompson5910):
oh i see, well you're close...perhaps you miscounted because the median is really 300
OpenStudy (anonymous):
oh ok whoops
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jimthompson5910 (jim_thompson5910):
so since both the median and the mode are 300, this means median = mode
OpenStudy (anonymous):
ok thanks