# MATH200/ME50, Statistics

Fall 2015, T 6:30–9:20, room 283A (Stan Brown)

Fall 2015, T 6:30–9:20, room 283A (Stan Brown)

Welcome! Please bookmark this page and check back at least once a week, whenever you miss a class, or when new material is announced in class.

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**17 Dec**
Latest email to the class:
**17 Dec**

**17 Dec**
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Happy holidays!

- Excel and your calculator generate pseudo-random numbers,
but Random.org
has lots of
**true random number generators**, including numbers, coin flips, and dice rolls.

- The Joy of Stats video: Hans Rosling shows lots of great ways to present data. Don’t miss the segment “200 Countries, 200 Years, 4 Minutes”, also available separately.
- Just for fun: Self Description — self-referential graphs.
- The Best Stats You’ve Ever Seen video: Hans Rosling uses descriptive stats to explode the myth of First World and Third World.
- MATH200A Program part 1 can be used to make histograms.
- ticalc.org has five programs to make pie charts. Though I haven't evaluated them in depth, PIEGRAPH.ZIP looks most interesting based on the screen shots.
- STEMLEAF.ZIP (1 KB) is a TI-83/84 program that makes stemplots.

- Box-Whisker Plots on TI-83/84, if you don’t have the MATH200A program.
- Box-Whisker Plots on TI-89.
- Normality Check and Finding Outliers in Excel doesn’t make the box-whisker plot, but finds outliers numerically.

- How do we know there’s one best line? How does the calculator know what it is? See Least Squares — the Gory Details.
- Under Chapter 12 are more inferences you can make about correlation and regression.

- Extended examples of probability:
- Application of false positives: Probability and the war on terror, by Sam Savage and Howard Wainer. A downloadable False Positives Calculator is included.
- A fascinating application of probability is Benford’s Law at Mathworld. One application is detecting cheating: Following Benford’s Law, or Looking Out for No. 1.

- Normality Check on TI-83/84, if you don’t have the MATH200A program.
- Normality Check on TI-89.
- Normality Check and Finding Outliers in Excel.

- What is a normal distribution? by Steve Simon gives an overview with diagrams. Near the bottom of the page there’s a downloadable spreadsheet that draws normal distributions.

- The Behavior of the Sample Mean by Gerald Dallal — pictures show how sample means are distributed and why that distribution is different from the shape of the population.

- For more about finding necesary sample size, see How Big a Sample Do I Need?
- We don’t do it in this class, but if you want to know how to compute confidence intervals about σ, the population standard deviation, see MATH200B Program part 5 or Inferences about One Population Standard Deviation.

- If you have a TI-89, see Testing Goodness of Fit on TI-89.

- Confidence Intervals for Goodness of Fit, with Excel workbooks.
- Inferential Statistics Cases contains additional cases beyond the ones required for class.
- Inferences about Linear Correlation, with Excel workbook. Alternative for the TI-83/84: MATH200B part 6.
- Inferences about Linear Regression, with Excel workbook. Alternative for the TI-83/84: MATH200B part 7.
- Inferences about One Population Standard Deviation, with Excel workbook; there’s also a TI-83/84 procedure at MATH200B Program part 5.
- All three of the above, and more, are included in MATH200B Program — Extra Statistics Utilities for TI-83/84 with a downloadable TI-83/84 program.
- One-Way ANOVA.

- Math Students’ FAQ.
- Why is Math so Hard?
- How to Succeed in Math.
- How to Study Math.
- How to Take a Math Test or Quiz.
- How to Read a Math Book.
- How to Work a Math Problem.

- UCLA Statistics Case Studies — real-life applications you can work yourself.
- On-line statistics courses:
- NIST/SEMATECH e-Handbook of Statistical Methods, aimed at science and engineering.
- HyperStat Online Statistics Textbook by David Lane of Rice U, with cartoons!
- Little Handbook of Statistical Practice by Gerald Dallal of Tufts U, with examples from nutrition and medicine.

**Homework Schedule**.- Your To-Do List.
- Chapter 1 Homework.
- Chapter 2 Homework.
- Chapter 3 Homework.
- Sleep Lab.
- (graph paper).
- Chapter 4 Homework.
- Shoe-Size Lab.
- Chapter 5 Homework.
- Probability Lab.
- Chapter 6 Homework.
- Chapter 7 Homework.
- Chapter 8 Homework.
- Chapter 9 Homework.
- Chapter 10 Homework.
- ESP Lab.
- Chapter 11 Homework.
- Chapter 12 Homework.
- Solutions to All Exercises.

- Course Outline.
- Grade Calculator (Excel).
- Grade Calculator (paper).
- FAQ: End of the Course.
- Can I Use a TI-89?.
- Raise of Grade Form.
- Course Debriefing.
- Baker Center hours.
- MyInfo / IQ Web.

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Updates and new info: http://BrownMath.com/stat15c/