Tonight, study, study, study! Come prepared to ACE this vocab quiz! Here's what you need to know:
- What do we discuss when we describe a distribution? (SOCS!)
- Skewed Left/Skewed Right (know where "most of the data falls" for each shape)
- Center (a value that tries to summarize a data set, attempts to represent a "typical value")
- Spread (a measure of how the data varies)
- Know the measures of center (mean, median)
- Know the measures of spread (standard deviation, range, IQR)
- Outlier (an "extreme" or "unusual" value that falls away from the rest of the data in a data set)
- Know what displays are used for quantitative data (boxplot, histogram, dotplot, stemplot, ogive)
- Know what displays are used for categorical data (frequency table, pie chart, bar graph)
- Range (Max - Min)
- Interquartile Range = IQR (Q3 - Q1)
- Mean (the average of a data set, "x-bar")
- Median (the middle number in a data set)
- Boxplot (graph that shows the 5 number summary with outliers)
- Histogram (graph that shows the frequency of data values for a given interval, shows how the data is distributed)
- Stemplot (graph that preserves all of the original data values, shows how the data is distributed)
- Know how to describe the shape given a histogram (unimodal/bimodal/uniform, along with skewed left/skewed right/symmetric)
In addition, you might start your weekend homework tonight--this homework will be weighted more than any other thus far--each will count as 3 points (HW is usually 2), 1.5 points for doing the problem, 1.5 points for scoring it!
Weekend HW = Complete and Score the 2016, 2007 Free Response provided in class (or below)
- First, complete the free response question; do your best! Take your time and write a thorough, detailed, complete answer just as you would on the exam! You should take at most 15 minutes to do so.
- Next, you must score your response using a different color (than what you completed the problem in). You must also record a few notes explaining why you earned the score you did (no matter if it's an E,P, or I). Using the link below, read through the AP rubric (scroll down to #1 in the rubric for each question
- Each free response is scored by part (a,b,c) or "sections"--you'll see one of each
- For each part/section you will earn a score of E (essentially correct), P (partially correct), or I (incorrect)
- Then, based on your "E's, P's, and I's" you earn a score of 0-4 for each free response
- READ THE RUBRIC IN DETAIL to understand this scoring system!
- Scoring and recording notes is half of the homework grade! Don't skip this! This is the part of the process that allows us to see how the exam is scored and what we need to do to earn a 5!
- Here are the links to the scoring rubrics:
And finally, here are the two AP problems in case you lost yours and need to print them:
Period H: We ran out of time and did not get to the second distribution in class, but we would like to have this in your notes--if you get this description into your notes and show me tomorrow I'll give you a couple extra stamps! (don't worry other periods, this won't affect your stamp situation at all).
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