Math 160 K
Fall 2009
Exam 2 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 end-of-section summaries are particularly useful for your review.
The second hour exam for Math 160 will be held on Friday, October 23, and will
cover section 1.3 and chapters 2 and 3 (through section 3.2) of the textbook.
In particular, be prepared to:
- Be able to work with table A (exercises from section 1.3).
- Define terms that we have encountered in these two chapters. While
we have been doing some calculations since the past exam, we have had plenty
of definitions thrown at us. Please be able to give clear and precise
definitions of all the terms we have seen in the material covered. As
mentioned above, although you are responsible for all terms defined in
class, the end-of-section summaries remind us of most (if not all) of them.
- Be able to say what scatterplots, response and
explanatory variables are.
- Be able to give the formulas for r, r^2 and say what they mean.
You will not be asked to calculate r..
- Be able to answer questions on linear regression, say what the linear
regression line tells us, and be able to calculate the y-intercept and slope
of a regression line given the appropriate values for averages and standard
deviations (i.e., you will not be called upon to calculate averages and
standard deviations on this exam.
- Be able to work with two-way tables.
- Be able to describe how we can obtain data by experiments and by
sampling. Be able to define terms. Be able to use table B to
select a sample from a set.
A calculator may be used for this exam, but only to calculate arithmetical
operations (add, subtract, multiply, and divide). You may not use the
statistical functions of your calculator on this exam.
Any questions? Please ask!