Monday HW = Complete and Score AP FR!

Monday Night's Homework:

1.) Complete the 2004 AP Free Response provided in class (or below).

• Create "parallel boxplots" simply means to use the given axis to draw two boxplots, one above the other
• Be sure to label which boxplot represents "Modern Thai Dogs" and which represents "Golden Jackals"
• We do not have the entire data set, so we cannot use our calculator to make the boxplot for us...
• Take a look at your "steps for creating a boxplot" notes from the summer academy, or watch the AP Stat Guy video on boxplots!
• Show the work for your fences (for each type of dog), and label which fences are for which group (Modern Thai v. Golden Jackal)
• This is on your chapter 5 quiz!

2.) Score your free response question using the criteria outlined below (the 2004 rubric is a little outdated now, so I have provided an up-to-date rubric to use below). 

• Scoring: The Boxplot
• Scroll down to page 12 of this link (click me!) to see the correct boxplots and "fence" work
• E (Essentially Correct):
• Correct boxplots are drawn with each boxplot labeled, the x-axis is labeled, a title is provided, and fence work is correctly shown/labeled
• P (Partially Correct):
• Label for each boxplot (Modern Thai v. Golden Jackal) is omitted, OR
• There is a minor error in the construction of the boxplots, OR
• No outliers are shown, but the boxplot is otherwise correct
• I (Incorrect):
• More than one of the errors listed above (with "P")
• The summary values are used as a full data set to construct the boxplot
• Scoring: Comparing Distributions
• Students should complete each of the following 5 components:
• Describes the shape of each distribution (1 point)
• Identifies outliers for each distribution (1 point)
• COMPARES a measure of center (median) using context and comparative language (1 point) and explains what this means in context (1 point)
• "Modern thai dogs have a larger median mandible length; this suggests that modern thai dogs typically have longer mandibles."
• COMPARES a measure of spread (range or IQR) using context and comparative language (1 point) and explains what this means in context (1 point)
• "Modern Thai dogs have a slightly larger IQR for mandible lengths; this suggests that the middle 50% of mandible lengths for modern thai dogs vary more (or that the middle 50% of mandible lengths for Golden Jackals are more consistent)." OR
• "Golden jackals have a larger range of mandible lengths, which suggests that the mandible lengths of golden jackals vary more."
• Student makes a correct "generally" statement (1 point) supported statistically (1 point)... 
• Generally, Modern Thai dogs have longer mandibles; 
• roughly 50% of modern thai dogs had longer mandibles than all of the golden jackals." OR
• all modern thai dogs had longer mandibles than all but 3 of the golden jackals.
• E (Essentially Correct):
• Earns 7-8 points based on the scoring above
• P (Partially Correct):
• Earns 5-6 points based on the scoring above
• I (Incorrect):
• Student does not meet criteria for E or P

Tomorrow in class we'll wrap up chapter 5 with some discussion of standard deviation and ogives--see you there!