Math 160
Fall 2009
Exam 1 Review
Disclaimer: I have attempted to be comprehensive in the
following, but important items may have been omitted by mistake. If
you see such an omission, please let me know, but you are responsible
for all of the lecture material to date.
The first hour exam for Math 160 will be held on Friday, September 25, and
will cover Chapter 1. In particular, be prepared
to:
- Know basic definitions (including, but not limited to,
individuals/cases, variables (categorical and quantitative), means, medians,
quartiles, IQR, outliers, variance, standard deviation, etc.)
- Be able to construct by hand stemplots (including back-to-back stemplots,
histograms, boxplots and bar graphs.
- Be able to find (by hand) medians, quartiles, IQR, and the rest of the
five number summary. Be able to apply the rule for finding outliers.
- Be able to calculate mean, variance, and standard deviation. You
may use a calculator for this sort of question.
- Be able to say what a density curve is.and what mean, median, and mode
mean for density curves
- Be able to say what a normal distribution is and why it is important
(including the 68-95-99.7 rule). Be able to calculate z-scores
(calculators may be used). We will hold off on questions using Table A
until the next exam (and after we gain some more experience using it).
- In exam questions in which a calculator may be used, please work the
problem out in enough detail that I can follow what you are doing. The
step before you calculate should be an expression that needs only to be
punched into a calculator to get the answer. This final expression
will be sufficient for questions on this exam.
- Be able generally to solve problems such as appear in the homework
assignments, including problems in the current homework assignment
(assignment #3)