HW = STUDY!

Tomorrow we will start class with 2 chapter 4 quizzes--vocab and "math." Be ready! Even you absent people will be taking it, no excuses!

Also, many of us should be looking back at last night's homework and re-scoring our free response--I need more detail for you to get full credit!

• You MUST give yourself a score of E, P, or I for each section based on the rubric
• You MUST provide a few notes/bullets explaining what you got that score...
• What was missing? 
• What would you need to add to get an "E?"
• Even if you got an E--what could you have done differently? Or, what could have done to improve your response!
• Check the blog post from yesterday for the homework question/link to the rubric.

Period A--I think I made a mistake with the median for that Old Faithful histogram--sorry Olivia, you were right! Next time you guys yell at me and tell me I messed up! Check it out:

Chapter 4 Vocab List (10 minutes for this section)

• These first two terms are new--center came up today, and a definition of spread is not in your notes--so the definitions are below:
• Center: An attempt to summarize a data set with one number--a "typical value" in a data set.
• Spread: measures how much our data varies, or how tightly our data is clustered around the center; also known as "variability"
• Histogram
• Boxplot
• Dotplot
• Stemplot
• Describe a distribution (what do we describe?)
• Skewed Left
• Skewed Right
• Know how to describe the shape of a distribution given a graph (unimodal, bimodal, uniform, symmetric, skewed left/right)
• Measures of center
• Measures of spread
• All chapter 2 vocab words are fair game: definitely review...
• summary statistics for categorical data
• graphical displays for categorical data
• summary statistics for quantitative data
• graphical displays for quantitative data
• Response Variable

"Math" Section: Graphical Displays and Describing Distributions

• Create a histogram using your calculator (5 min)
• Describe the distribution (5 min)
• Know how to find median, range, sample size, given a histogram--look at the warmup from the first day of our summer academy, or our stamp problem about "lengths of Greek tragedies!"
• Here is a "practice quiz" you can try (there's a second question in addition to the one provided in class):

• And here's an answer keys so you can check your work to study!

Tuesday HW = AP FR!

Tonight please COMPLETE AND SCORE the 2016 free response question (on the back of today's classwork).

1. First, do the question! Don't look at the answer! Try to time yourself--do your best to complete this in at most 15 minutes.
2. Score your response! Look at the AP rubric (provided in class, or linked below) and read through the sample response and scoring criteria
• USE A DIFFERENT COLOR TO SCORE YOUR RESPONSE
• Read through the scoring guidelines to give yourself a score of "E, P, or I" for each section
• Record some notes/comments about how you could have earned an "E" if you scored P or I--what was missing?
• Even if you scored "E," jot down some notes/comments--what could you have added to enhance your response?
• Score each section, then use the rubric to give yourself a score of 0-4 for the question

Tomorrow when I check homework you MUST have a complete, detailed response AND score your response (in a different color) with some notes on your scoring to receive full credit.

Tomorrow in class we'll get back to some notes and start chapter 5, where we'll look more deeply into the summary statistics we've been calculating, what they are/mean, and how they can best be used.

We will start class on Thursday with (2) chapter 4 quizzes:

• 10 minutes = chapter 4 vocab quiz
• 13 minutes = chapter 4 "math" quiz--create a histogram (with calculator), describe the distribution, and then "read a histogram" 

I didn't have time to finalize the quiz today, so the final draft of the vocab list will be up tomorrow--but for now, here's at least some of the vocab list:

• Histogram
• Boxplot
• Dotplot
• Stemplot
• Describe a distribution (what do we describe?)
• Skewed Left
• Skewed Right
• Know how to describe the shape of a distribution given a graph (unimodal, bimodal, uniform, symmetric, skewed left/right)
• Measures of center
• Measures of spread
• All chapter 2 vocab words are fair game: definitely review...
• summary statistics for categorical data
• graphical displays for categorical data
• summary statistics for quantitative data
• graphical displays for quantitative data
• Response Variable

If you were out (or lost your stuff), here's what you need for tonight's homework:

• First, complete the 2016 Free Response question (be thorough/detailed, and use context--pretend you're taking the AP exam!)

• Next, score your response using the rubric linked below--see the top of this post for more detailed instructions!

• 2016 Scoring Rubric (scroll down to question #1 and read through the scoring guidelines)

Enjoy your Tuesday! See you for more Stats tomorrow!

Monday HW

You already know this from our last post--tonight, please complete the following in your textbook:

Page 65: 5, 13, 26

• Use our example from class to help with these!
• I will provide an answer key for these 3 tomorrow in class--your answers should be modeled after today's in-class example, and should be much more detailed than what's in the back of the book (still look at those though).
• For #5 when you estimate the median just try to "eyeball" where the middle is--don't worry about counting the sample size with this histogram and finding a more precise median
• For #13 you should enter the data in your calculator and use the 1 Var Stats to find the exact mean, median, IQR, standard deviation, and range and report all of these for your measures of center adn spread

Page 96:  31bc

• For 31c we do not have the entire data set, so we must create the boxplot by hand--use your notes!
• Check your answer!

Tomorrow in class we'll do some work in groups to practice creating and describing displays--see you there!

(Oh, and if you were out today then you'll be starting class with the "pop quiz" that the rest of us did today; check Friday's blog post...)

Weekend HW!

This weekend please complete the following in your textbook:

Page 40: 27abc

Page 91: 3, 15, 24abc, 29ab

• For #3 DO NOT do this by hand--enter the data in your calculator and use the "1 Var Stat" to find these statistics
• For #15 you should also use your calculator...
• Enter the data values for NE/MW States in one list (L1)
• Enter the data values for the S/W states in another list (L2)
• Go to your stat plots--turn one plot on and create a boxplot (with outliers) for L1, then turn on another plot and create a second boxplot for L2
• Now when you press ZoomStat you will see both (paralell) boxplots!
• Press Trace and you'll see the cursor on one boxplot to read the values and sketch the graph
• Press up/down when you're tracing to toggle between the two boxplots
• Transfer these to your paper--be sure to label which boxplot is NE/MW and which is S/W
• #24 answers (not in the back of the book):
• a.) Month 4 (April)
• b.) Month 2 (February)
• c.) Month 8 (August)

Extra Stamp Opportunity (+3 stamps): If you can find an online/PDF version of our textbook and email/Remind me the link you'll get some extra stamps!

Book: Stats: Modeling the World VERSION 2 (I've found other versions, but not 2 yet...)

If you're feeling ambitious, here's (some of) Monday's homework:

Page 65: 5, 13, 26

• We're going to learn about describing distributions on Monday, so I'd hold off on writing complete answers for these, but you can start some "prep work..." (maybe just create a bulleted list for now, and then you can formally write your answers Monday)
• For #5 you can determine the shape, estimate the range, and estimate the median (for the median here just try to "eyeball" where the middle is--don't worry about counting the sample size with this histogram and finding a mroe precise median)
• For #13 you should enter the data in your calculator and use the 1 Var Stats to find the exact mean, median, IQR, standard deviation, and range; you can also describe the shape.
• For #26 you should describe the shape, estimate the median (you know n = 25), and estimate the range
• And for all of these you can look at each display to decide if there are "potential outliers

Page 96:  31bc

• For 31c we do not have the entire data set, so we must create the boxplot by hand--use your notes!

Have an AWESOME weekend! We can finally go outside without sweating nonstop! 

GO GMEN!!!

(Oh....one more thing....you might want to do a little review so you're ready for the pop quiz I'm going to surprise you with Monday morning--it's 4 multiple choice questions. Be sure you can find the median for a given histogram, determine the IQR given a picture of a boxplot, and determine if a histogram is symmetric/skewed left/skewed right...)

Thursday HW

Tonight, please complete the following in your textbook (it's a little longer than I usually give--that's because it was a 2 day hw!)

• Page 39: 19
• Some probability review here--use your notes from day 3 of our summer academy!
• Remember to look at the "of ____" to determine your denominator...
• For example, if we were asked what percent of waitlisted students are black/hispanic, then we know our denominator is 300, or the total number waitlisted ("of waitlisted")
• Check your answers in the back of the book!
• Pages 65-71: 9, 11, 17, 19a, 33c
• 9a--check your answer in the back of the book
• For 9b don't worry about the answer in the back of the book or describing shape...we'll learn that...
• For this question (9b), I want you to write a few sentences...
• Write a sentence providing the median size (in acres) of the 36 vineyards and the range in sizes of vineyards
• Then, write a sentence describing what this graph tells us about the sizes of these 36 vineyards--what sizes are most vineyards? "Most vineyards are _________. 
• Comment on any "unusual features--were any vineyards unusually large or small? What size?
• For 11a (create a stemplot) round everything to 2 decimal places and use split stems (like today's example in class)--check your answer in back!
• For 11b just describe the center and spread--use your calculator to find the 1 var stats
• Center: provide the mean and median
• Write these in a complete sentence: "The mean gas price for 16 gas stations in Ithaca, NY is ___ and the median price is ___."
• Spread: provide range, IQR, and standard deviation (Sx)
• Write these in a complete sentence: "The range of gas prices for 16 gas stations in Ithaca, NY is ____, with an IQR of ___, and a standard deviation of _____."
• Take a look at the answer in the back of the book for 11b!
• For 11c look at your stemplot--what unusual feature do you notice? (Unusual = gaps)
• For 17 only create the stemplot, check your graph in back
• For 19a check your dotplot with the back of the book
• For 33c you want to determine if there are any outliers for the # of assaults (per 1000) and then for the # killed-injured (per 1000)...
• This is two different problems--first use your calculator and the 1 Var Stats to find Q1 and Q3 for the # assaults, then calculate the fences to see if there are outliers
• Repeat this process for the # killed-injured
• Check your answer in back!

Tomorrow in class we'll start our notes on "describing distributions!" This will carry us into next week, and then we'll finally have some opportunities to get some groupwork/practice going in class (and take a break from listening to me)!

Vocab Quiz Tomorrow, HW Due Friday

*If you were absent today you must make up your "Analyzing Context" quiz tomorrow or Friday! Send me a Remind/email or see me tomorrow to set up a plan!

Tomorrow we'll start class with our first (multiple choice) vocab quiz (chapter 2)--your first priority tonight is to prepare yourself to earn an A! The vocab list is below.

• All or some of these words will be on your vocab quiz, which is entirely multiple choice
• You will be given the word and asked to choose the best definition, or given the definition and must choose the correct term
• Data
• Categorical Data/Variable
• Quantitative Data/Variable
• statistic(s)
• Statistics
• relative (just means to use %'s!)
• What statistics are used to summarize quantitative data?
• Which are measures of center? Of spread?
• What graphical displays are used with quantitative data?
• What statistic is used to summarize categorical data?
• What graphical displays are used with categorical data?
• Response variable(s): this is what we are measuring or recording in a study
• Experiment
• (Sample) Survey
• Observational Study

The following homework assignment is due (and will be checked) on Friday, but get a head start tonight! 

• Period A I will check last night's homework tomorrow since I did not do so today

• Page 39: 19
• Some probability review here--use your notes from day 3 of our summer academy!
• Remember to look at the "of ____" to determine your denominator...
• For example, if we were asked what percent of waitlisted students are black/hispanic, then we know our denominator is 300, or the total number waitlisted ("of waitlisted")
• Pages 65-71: 9, 11, 17, 19a, 33c
• For 9b don't worry about the answer in the back of the book or describing shape...we'll learn that...
• For this question (9b), I want you to write a few sentences...
• Write a sentence providing the median size (in acres) of the 36 vineyards and the range in sizes of vineyards
• Then, write a sentence describing what this graph tells us about the sizes of these 36 vineyards--what sizes are most vineyards? "Most vineyards are _________. 
• Comment on any "unusual features--were any vineyards unusually large or small? What size?
• For 11b just describe the center and spread--use your calculator to find the 1 var stats
• Center: provide the mean and median
• Write these in a complete sentence: "The mean gas price for 16 gas stations in Ithaca, NY is ___ and the median price is ___."
• Spread: provide range, IQR, and standard deviation (Sx)
• Write these in a complete sentence: "The range of gas prices for 16 gas stations in Ithaca, NY is ____, with an IQR of ___, and a standard deviation of _____."
• For 11c look at your stemplot--what unusual feature do you notice?
• For 17 only create the stemplot. 
• For 33c you want to determine if there are any outliers for the # of assaults (per 1000) and then for the # killed-injured (per 1000)...
• This is two different problems--first use your calculator and the 1 Var Stats to find Q1 and Q3 for the # assaults, then calculate the fences to see if there are outliers
• Repeat this process for the # killed-injured

Tomorrow in class we'll finish up our notes on "creating displays" and start to transition to some notes on describing them! See you there!

Tuesday Homework, Upcoming Quizzes

Tonight please complete the following in your textbook--and check your answers for the odds!

Page 65: 7, 22 (period A: I took out #19 AND change 21 to 22)

• For #7a, "Describe this distribution," I want you to write a few sentences describing what this graph tells you about the sugar content (as a % of weight) of these brands of breakfast cereals...
• Some ideas to consider:: what is the range of sugar content? What is the median sugar content? What amounts of sugar content do cereals cluster around?
• For #22 please create a histogram--use a bin width of 10

Page 94: 23, 42

• For 42, ignore the directions--I want you to use this data to create a boxplot

We will start class tomorrow with our "Analyzing Context" quiz (just like the homework due today)--come ready to earn an A!

And on Thursday we'll start class with our first (multiple choice) vocab quiz (chapter 2)--the vocab list is below!

• All or some of these words will be on your vocab quiz, which is entirely multiple choice
• You will be given the word and asked to choose the best definition, or given the definition and must choose the correct term
• Data
• Categorical Data/Variable
• Quantitative Data/Variable
• statistic(s)
• Statistics
• relative (just means to use %'s!)
• What statistics are used to summarize quantitative data?
• Which are measures of center? Of spread?
• What graphical displays are used with quantitative data?
• What statistic is used to summarize categorical data?
• What graphical displays are used with categorical data?
• Response variable(s): this is what we are measuring or recording in a study
• Experiment
• (Sample) Survey
• Observational Study