Here's a breakdown of what you need to know for tomorrow's test; the test includes both free response and multiple choice questions!
- Identify variables as quantitative or categorical
- Read a histogram, including identify sample size and find a median
- We did an example of this on the first day of our summer sessions--we looked at a histogram showing different amounts of credit card debt and had to answer questions about the histogram! Study these!
- Given a five number summary, determine if there are any outliers
- Find probabilities/percentages given a two way (or contingency) table
- Take a look at the Titanic questions we had for homework on Tuesday!
- Create a histogram given a full data set (use your calculator!)
- Given a context identify the explanatory and response variable (we had multiple choice on our summer assignment like this!)
- Determine if a study is an experiment, observational study, or survey
- Create a boxplot given summary data (without a calc)
- Know how to read a boxplot to find the median, IQR, and range
- Find an overall mean when combining samples
- Take a look at the first multiple choice question on your summer assignment!
- Given a context like this, find the mean and median:
- "In a Stat class, thirteen students earned a 74, six students earned an 82, and three students earned a 95."
- Find the median. (The median would be 74)
- Find the mean. (The mean is 79.05).
- For #33, the answer we get is different from the back of the book: you should get 1 outlier for each data set! (National Park Service for both)
- This is on your test tomorrow! (but you won't have to find Q1, Q3 yourself, they will be given to you)
- To determine if there are outliers, first you need to enter the data for Assaults in your calculator, then get the 5 number summary using "1 Var Stats"
- Then, use this data to find the fences! (You should get Q1 = 5 and Q3 = 17.9).
- It turns out, for Assaults, there is one outlier: National Park Service
- Next, do the same for the Killed/Injured data--enter it into your calculator, find the 1 Var Stats to get the five number summary, then find the finces!
- You should get Q1 = 1.2, Q3 = 3.6
- For this data, there is also one outlier--National Park Service
Tomorrow after our test I'll give you a little homework, and then on Monday we'll get back to chapter 4! On Monday we'll answer any questions about the stemplots/dotplots from last night's homework, and then learn some new stuff!
I'm looking forward to grading lots of A's tomorrow!
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