anonymous
  • anonymous
@jeweaver145 Anyone who can help please do! Statistics Use the stem and leaf plot below to answer questions 11-13. Assume that 30|0=300 30|0 31|2 2 32|1 5 33|0 3 6 34|4 5 7 8 35|1 1 2 9 I only need help on thirteen. If this data were put into a bar graph, which of the following would be true regarding the shape of the graph? A. It would be skewed left B. It would be skewed right C. It would be bell shaped D There is not enough information to tell
Mathematics
  • Stacey Warren - Expert brainly.com
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katieb
  • katieb
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anonymous
  • anonymous
ok, so as you can see there is a greater amount of numbers along the 350 range than the 300 range, so since there are more on the higher numbers, it would be skewed to the right. Can you see that?
anonymous
  • anonymous
here you can see a graph of the data, see how its greater on the right side?
1 Attachment
anonymous
  • anonymous
Yes perfect! Thank you so much! @jeweaver145

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anonymous
  • anonymous
I have just one more and I let you off the hook at least for a second. Is that okay? @jeweaver145
amistre64
  • amistre64
skew refers to how the mean is affected, not the greater amount of data.
amistre64
  • amistre64
outliers pull the mean away from center, it skews the mean towards the tail.
amistre64
  • amistre64
|dw:1442526316345:dw|
anonymous
  • anonymous
i think youll find if you calculate the mean, it will lean heavier towards the side of greater data which is what we are seeing in this situation. I could be wrong but that is just my understanding
anonymous
  • anonymous
So is it skewing left or right?
anonymous
  • anonymous
its still right skewed
anonymous
  • anonymous
and yeah just open another question for me!
amistre64
  • amistre64
if we tilt this on its side ... you see that the 30s are smaller than the 35s the 30s are pulling the mean away from the greater portion of the data
amistre64
  • amistre64
the mean is skewed to the left as a result ...
anonymous
  • anonymous
Ugh you guys lol
amistre64
  • amistre64
|dw:1442526501749:dw|
anonymous
  • anonymous
OH! I see.
anonymous
  • anonymous
But doesnt the fact that the question specifically asks for a bar graph not a normal distribution, affect the way this turns out? now you got me wondering haha
amistre64
  • amistre64
http://www.statisticshowto.com/wp-content/uploads/2014/02/pearson-mode-skewness.jpg
amistre64
  • amistre64
the stem and leaf can be viewed as a crude histogram .. the length of the leafing parts gives us a rough shape.
anonymous
  • anonymous
I also have another questions. How do you post screenshots? My next questions has a histogram and I don't know how to post it.
amistre64
  • amistre64
1 Attachment
amistre64
  • amistre64
sane the screenshot in a picture file in paint, is what i do, then attach
anonymous
  • anonymous
you can use the snipping tool in windows and then save the screen capture, then just attach file
anonymous
  • anonymous
In paint? Alrighty. I usually do it in word but of course you can't save it as a picture so that doesnt work.
amistre64
  • amistre64
jeweaver, i think your bar graph is a little off ... not sure how you worked density versus the other thing
anonymous
  • anonymous
i honestly through the data points into my calculator and told it to make me a histogram of the data, and then based the data on density of occurrence, thats all, the information on the left isnt really significant

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