Saturday, August 9, 2014

Chapter 3- Displaying and Describing Categorical Data

1)
religious-diversity-1

APA Citation: Global Religious Diversity. (2014, April 4). Retrieved August 9, 2014, from http://www.pewforum.org/2014/04/04/global-religious-diversity/

 a) Yes the graph is clearly labeled as it shows the percentage of major religious groups throughout the globe.
b) The area principle says that the area occupied by a part of the graph should correspond to the magnitude of the value it represents.This graph DOES NOT violate the area principle as everything is proportional and the percentages add up to 100%.
c) The article does provide the W's of the variable.
Who: The entire global population
What: Major religious groups
When: 2010
Where: N/A
Why: To show the diverse religion groups that the majority of the world practices.
d) Yes, I believe the article correctly interprets the data correctly. The largest countries in the world reside in Asia and Europe, which would explain why they are the most religiously diverse in the world.

2)
Should Immigration Increase, Decrease, or Stay at Current Levels
APA Citation: Saad, L. (2014, June 27). More in U.S. Would Decrease Immigration Than Increase. Retrieved August 9, 2014, from http://www.gallup.com/poll/171962/decrease-immigration-increase.aspx

a) Yes, the graph is clearly labeled.
b) This graph displays percentages.
c) Yes the accompanying article tells us the W's of the variable.
Who: National adults, republicans, independents, and democrats.
When: Conducted June 5-8, 2014
Why: To see how Americans feel about immigration, whether it should be increased, decreased, or kept at the present level.
d) Yes, I believe the article correctly interprets the data. The article goes into depth of some of the reasoning behind the responses of Americans.
3)
A majority of older internet users go online on a daily basis
Link: http://www.pewinternet.org/2014/04/03/older-adults-and-technology-use/

a) Yes, the graph is clearly labeled.
b) No, the graph does NOT violate the area principle. The length of the bars are proportional to the values.
c) The variables under consideration are the age groups because there are no units available. The accompanying article does not give us all the W's of the variables, but you are able to retrieve them from the graph.
What: Number of times they use the internet
Who: Different age groups
When: Conducted from July 18- September 30, 2013
Where: N/A
Why: To compare how different age groups differ in the amount of time they spend on the internet
d) I believe the article correctly interprets the data. The article states that older adults who use the internet, make it a habit to visit it almost every day. The graph supports this as it shows that 71% of adults 65 years and older use the internet almost every day.





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