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Mathematics 8 Online
OpenStudy (anonymous):

Which type of data display would be best for showing a comparison between the average scores earned on a video game among eight friends? Bar graph Box and whisker plot Circle graph Histogram

OpenStudy (anonymous):

im thinking a histogram or bar graph. idk which one between the two. i just kno it narrows down to the two. srry out the inconvenience :/

OpenStudy (anonymous):

Its fine thank you c:

OpenStudy (anonymous):

^_^ np

jimthompson5910 (jim_thompson5910):

The question to ask yourself is this: what is the variable that represents the horizontal axis?

OpenStudy (anonymous):

The friends

jimthompson5910 (jim_thompson5910):

is that a numerical variable? ie a quantitative variable?

OpenStudy (anonymous):

I dont know what either of those words means >.<

jimthompson5910 (jim_thompson5910):

well a variable could be numerical (ie it can have a number, like x = 2) but a variable could also be categorical, for instance, in this case the variable is the friend's names so x = george or x = tony or something like that

jimthompson5910 (jim_thompson5910):

because we're talking about names, it doesn't make sense to make them numerical, so we don't have quantitative variable for the names So we're dealing with a categorical x variable

jimthompson5910 (jim_thompson5910):

which means a bar graph will be used because a histogram is only used if the x variable is a continuous numeric variable

jimthompson5910 (jim_thompson5910):

this page may explain it better http://mathcentral.uregina.ca/QQ/database/QQ.09.99/raeluck1.html

OpenStudy (anonymous):

Thank you :)

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