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Wednesday, October 12, 2016

TEST TOMORROW!

Tomorrow we will have our Unit 1 Test (covering chapters 2, 3, 4, 5, and 6)! STUDY, STUDY, STUDY! Then, on Friday we'll get into linear regression--see you there!

Here's an outline of what's on your test tomorrow!
  • The test has both free response (FR) and multiple choice (MC) questions
  • Use your chapter quizzes, our first mid-unit test, and your take home test to study!
  • Find percentages above/below/between with the Normal curve using normalcdf (study the "classifying storms" problem we did in class!) (ch. 6)
  • Find data values that cut off a given percentile/% above/% between using invnorm! (ch. 6)
  • Compare boxplots IN CONTEXT! (study the last question from our chapter 5 take home quiz, along with the rubric I provided yesterday!) (ch. 5)
  • Describe the shape, center, and spread of a given histogram/dotplot/stemplot (ch. 4)
  • Know how the mean and median compare for different shapes of distributions (symmetric, skewed left, skewed right) (ch. 4)
  • Read a stemplot to find median, range, percentiles (% below) (ch. 4)
  • Know how shifting/rescaling affects measures of position and spread, and calculate these new values (study the table about Yuans on your take home test!) (ch. 6)
  • Identify which dotplot/histogram/stemplot has the highest/lowest standard deviation (study our matching histograms to 6 variables classwork!) (ch. 5)
  • Know how to calculate a z score and interpret its meaning in a complete sentence (ch. 6)
  • Find probabilities from a two-way table (study the SSRI question on our first test, or look at the Titanic problems in chapter 3!)
  • Reading boxplots--now the meanings of Q1, Median, Q3 as percentiles (what % of data falls below/above/between these values) (ch. 5)
  • Completely identify the shape of histograms (ch. 4)
  • Create graphical displays--boxplots, dotplots, stemplots, dotplots (ch. 4/5)
Use the multiple choice practice from today's class to study! The answers (and questions) are below--this is a bunch of practice for you!




And here are the answers:

  1. B
  2. C
  3. C
  4. A
  5. D
  6. (a.) 94.52%, (b.) 10.69%, (c.) 34104.05 miles (d.) 36112.13 miles 

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