Math 65 Quiz 4
NAME: ANSWER KEY
1. What is the 68-95-99.7 rule and what does it tell us?
ANSWER: It is a rule for determining where certain percentages of the data lie in a normal
distribution. It states that 68% of the data lies within one standard devia
Chapter 5: Statistical Reasoning
Chapter 5 will familiarize you with the fundamentals of statistics, focusing
on many common real-world uses. There are several main ideas that appear
throughout the chapter, such as what a statistical study is, how informa
Math 65 Quiz 1
NAME: ANSWERS
1. What is meant by the margin of error in a survey or opinion poll? How is it used to
identify a condence interval?
The margin of error is how close the data is expected to represent the population. The
condence interval is t
Math 65 Midterm
Name: ANSWER KEY
Questions 1-5 are matching questions. Match the word on the left with the denition on
the right by writing the letter of the answer next to the word.
A) It is unlikely that the data set or observations occurred by chance.
Chapter 13: Mathematics and Business
Zachary Hanson-Hart
June 20, 2005
Background
Mathematics is an abstraction of reality, so I say. Much of mathematics is
brought about by trying to solve a real problem. Complicated mathematics
may seem irrelavent to th
Chapter 6: Putting Statistics to Work
In Chapter 5 we learned the 5 basic steps of a statistical study. We learned about dierent
methods of sampling and the strengths and weaknesses of each (step 2). We also learned
about experiments and observational stu
Chapter 12: Mathematics and Politics
Zachary Hanson-Hart
June 13, 2005
Introduction
Chapter 12 begins with dening and giving an example of ve dierent voting
methods for three or more candidates. Then, in the next section, it gives you
fairness criteria an
Math 65 Quiz 2
NAME: ANSWER KEY
1. Determine whether the blood type of individuals is qualitative or quantitative, and explain
why.
ANSWER: qualitative since it is non-numerical
2. The following table shows the ve vehicles with the largest number of sales
Math 65 Quiz 3
NAME: ANSWER KEY
1. Find the mean, median and mode of the following data set:
98.6 98.6 98.0 98.0 99.0
(hint, rst write them in ascending or descending order)
98.4 98.4 98.4 98.4 98.6
ANSWER: These values are:
99.0, 98.6, 98.6, 98.6, 98.4,
Math 65 Final Exam
Name:
This exam consists of 50 questions. Every question is worth 2 points. Partial credit may be
awarded for the true/false questions if a good explanation is given in the blue book. Partial credit
may be awarded for the multiple choic
Math 65 Quiz 7
NAME:
1. What is an Euler circuit? How can you tell if a given network has one?
ANSWER: An Euler circuit is a circuit through a network that traverses each edge exactly
once. A network has one if every vertex has an even degree.
2. Consider
Math 65 Quiz 7
NAME:
1. What is the quota criterion? Why are violations of it considered unfair?
ANSWER: The quota criterion states that the actual apportionment should be the standard
quota rounded either up or down to the nearest integer. Violations of
Math 65 Quiz 5
NAME: ANSWER KEY
1. In an election with only two candidates, can both candidates reveive more than 50% of
the votes?
ANSWER: No. If that were the case, there would be more than 100% of the votes counted.
2. In the 1888 presidential election