1.) Complete the Progress Checks in My AP Classroom!
- Complete/submit the 18 multiple choice questions to practice! Then, check out your results and try to figure out anything you answered incorrectly!
- For the free response you don't have to worry about submitting your answers--I'm not going to grade all of yours because I want you to use this to study--you can just do these on paper and then use the scoring guide below to check your answers
2.) Look through your notes, old quizzes, your last test, and any other stuff you have to make sure you know all of the following--here's an outline of what you need to know for your test tomorrow...
- Be able to describe the shape of a distribution completely
- this was also on today's vocab test
- Know how mean and median compare based on the shape of a distribution
- Know which measures of center/spread are appropriate for a given shape
- Know how to calculate outliers for a given data set:
- Fences: work for any data set
- Normal model: any value that is more than 3 standard deviations away from the mean is an outlier
- Describe a distribution given a histogram
- Look at our tip amounts stamp
- Compare distributions given boxplots
- Look at today's GPA example
- Compare distributions given 2 histograms
- We have not seen this in class, but we still compare SOCS--this type of question would combine the ideas from the "tip amounts" example and today's "comparing GPA's" example
- Be able to determine which graph would have the highest/lowest standard deviation
- this would connect to the matching histograms to variables group work we did a few weeks ago
- Shifting and Rescaling -- how do they impact measures of center and spread?
- like the third MC from yesterday's classwork or a few textbook homework problems or the Fahrenheit/Celsius example in our notes
- Know when it's appropriate to use a Normal model
- like in the first free response in the My AP Classroom assignment
- Calculate and interpret z scores
- We had two stamp problems that based on this--one with you and your sibling's test grades, and one with the amount of weight a player can lift
- Be sure to complete the middle question on the back of yesterday's multiple choice (about Chipotle and Carofano's Italian restaurant)
- Use z-scores to compare performances--like the second (middle front) question) from yesterday's classwork
- Know how to use normalcdf and when to use normalcdf for a given problem
- (like our "storms" classwork yesterday, or our IQ homework, ketchup homework or our Chipotle slides)
- Know how to use invnorm and when to use invnorm
- (like our IQ or ketchup homework or our Chipotle slides or the last multiple choice from yesterday's classwork)
- Also know how to use invnorm to find the cutoffs for "middle percents," or to find IQR
- Be ready for more writing on Thursday's test! Some tips:
- REWORD THE QUESTION
- Always use context
- Remember to describe or compare SOCS
- Always directly answer the question--be clear
- If you are asked to explain your reasoning, explain your reasoning!
- Always answer specific to the given question/context--never answer in generalities
- Here are some sample answers from our first unit test you can check out:
3.) Here is the MC homework and answers from yesterday in class:
- Ch. 6 MC Classwork (Click Me)
- Chapter 6 MC Answers:
- 5.) Some descriptive statistics....B
- At a college the scores on the chemistry....
- 7.) Suppose that the distribution....A
- The caffeine content....C
- The sodium content of meals at Chipotle....D
- Based on the Normal model for car speeds...C
4.) Here are the "storms" answers too!
- Storms Free Response (Weds. Classwork)
- a.) 0.0098 = 0.98%
- b.) 0.676 = 67.6%
- c.) 0.1217 = 12.17%
- d.) About 9 minor storms, about 32 (or 33) mild storms, about 6 super storms, and 0 or 1 are not classified (make sure all answers add up to 48)
How else can I study?
- Watch Unit 1 AP Stat Guy videos (or any other videos)
- Watch the video I shared in Remind for help with normalcdf/invnorm
- Use Khan Academy = videos and practice
- Create an outline from your notes that addresses each of the bullets above (for the stuff on your test)
- Go back to your last test and figure out/re-write anything that was incorrect
Lastly, here's a sample "comparing boxplots" question from period H today:
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