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Mathematics 21 Online
OpenStudy (anonymous):

Based on the graph shown, which of the following statements is true?

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.

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

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?

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?

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

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}

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

jimthompson5910 (jim_thompson5910):

so since both the median and the mode are 300, this means median = mode

OpenStudy (anonymous):

ok thanks

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