9.2 Histograms homework

Quite a few people failed to READ THE QUESTION (rookie mistake) and forgot to actually construct the histogram.

This question had a bit of a puzzle in it.  What are the boundaries of the groups?  Most people decided to use the end of the group.  You should think about how the numbers would have been rounded.
I guessed the groups should be extended by 0.5 of a km each way.  Why do you think that is?

Otherwise nearly everyone calculated the group widths as 2.  This would mean they are not connected and so it wouldn't be a histogram (which many of you wouldn't know as you didn't complete the histogram)

Another important thing to note is that this is not like a bar chart because the x axis is a scale rather than set of categories.  Numbers should be evenly spaced and the groups set based on the scale not the axis set based on the groups.



For this question the main problem was forgetting about frequency density and plotting these with frequency instead (and writing 3 in the table for 1000 < w < 1400 instead of 6)

9.2 Infographic homework

The purpose of this homework was to use some of the data presentation types we had learnt about in a real context.  Infographics are widely used nowadays and often contain pie charts and bar charts as well as more exotic kinds of graphs.

Homework submitted was varied. 
Examples of charts and graphs
Some just gave examples of charts with explanations. I assume this is because they were not sure what an infographic was.  It would be good to do at least a quick search for infographics or ask if there is any confusion over the task in future.

Obesity infographics
It was great to see that some had jumped on a relevant topic for the school at present.  That is a perfect example of what I was looking for and how data can be used.

Same data for multiple charts
Infographics use different charts for different information.  You would usually need more than one set of data to start to tell the story about a topic.  You wouldn't use different charts to show the same data.

Personal topics
Many chose to explore topics of their personal interest.  I thought some of these were just fantastic and I was particularly impressed by the amount of work that must have gone into some of them

Here were some (not all) of the best imho.