anonymous
  • anonymous
Could somebody help me with a Stem & Leaf plot problem? I just suck at these.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
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anonymous
  • anonymous
I think it's either B or D.
jim_thompson5910
  • jim_thompson5910

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jim_thompson5910
  • jim_thompson5910
Are you able to find the median of this data set? {0, 0, 5, 8 12, 13, 15, 18, 18, 19 22, 24, 26, 27, 27, 27 33, 35, 36 42, 44, 46 57}
anonymous
  • anonymous
Are you suppose to ignore the zeros or not?
anonymous
  • anonymous
@jim_thompson5910
jim_thompson5910
  • jim_thompson5910
no do not ignore the 0s
jim_thompson5910
  • jim_thompson5910
they are part of the data set
anonymous
  • anonymous
Then the median is 26.
jim_thompson5910
  • jim_thompson5910
close but no
anonymous
  • anonymous
Oh, 24. My bad. :)
jim_thompson5910
  • jim_thompson5910
yep
jim_thompson5910
  • jim_thompson5910
what is the mode?
anonymous
  • anonymous
27
jim_thompson5910
  • jim_thompson5910
so "the median is greater than the mode" is false
jim_thompson5910
  • jim_thompson5910
what is the range of this data set?
anonymous
  • anonymous
57
anonymous
  • anonymous
so B is wrong.
jim_thompson5910
  • jim_thompson5910
yep 57 is the correct range, not 52
jim_thompson5910
  • jim_thompson5910
if you break up the data set into two halves, you'll find that the lower or left half is 0, 0, 5, 8, 12, 13, 15, 18, 18, 19, 22 what is the median of this data set shown above?
anonymous
  • anonymous
13
jim_thompson5910
  • jim_thompson5910
good
jim_thompson5910
  • jim_thompson5910
the median of the lower/left half of the data is exactly equal to the value of Q1 Q1 = first quartile
jim_thompson5910
  • jim_thompson5910
so C is right. How about D?
anonymous
  • anonymous
That's one of the things I'm having trouble with. I can't figure out which graphs are symmetrical and which aren't.
jim_thompson5910
  • jim_thompson5910
where is the median? what value is it?
anonymous
  • anonymous
The median is in the middle and it's 24.
jim_thompson5910
  • jim_thompson5910
well if this data set was perfectly symmetrical, then you would have a mirror like quality of the data values. The mirror itself would be at the median, aka the middle
jim_thompson5910
  • jim_thompson5910
but notice how we have one lone outlier at 57 in contrast, we have a bunch of values clumped around the single digits (0, 0, 5, 8) and then a bunch more in the teens (12, 13, etc etc). So there are a lot more data values on the left side end, compared to the right end

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