What Does It Mean???
A good friend and colleague of mine likes to say when it comes to analyzing data, “what does it mean?” To the left, is a graph of the mean weight of the Blanding’s turtle hatchlings. The three elementary schools, the other 2010 hatchlings, and the data from the 2008 and 2009 hatchlings are all represented here. Take a close look at the graph (you can click on it to enlarge it) and then answer the following questions. Make sure you use complete sentences, label your answers, and make sure you use grams in your answers and not (g).
a. What do you notice about the Thoreau hatchlings compared to the other hatchlings. Why do you think this is so?
b. In general, how do all the 2010 hatchlings compare to the 2008 and 2009 hatchlings? Why do you think there is a difference?
What Does It Mean? Part Two
When I was looking at the data this weekend, I noticed some really interesting pieces of data and was wondering what you thought about this data. So, take a look at this chart and answer a few questions about this data.
a. What is the range of the January weights for Turtle #2031’s hatchlings?
b. Do you think this range is typical if you looked at Yertle and Bowser’s mother’s hatchlings in January?
c. What are the outliers for these hatchlings?
d. What is the median weight for these hatchlings?
e. How does Yertle at 68 grams and Bowser at 70 grams compare to the median weight of these hatchlings?
f. What might account for the weights of this particular bunch of hatchlings?