Discrete Probability Distributions
Random Variable x a variable representing a numerical value associated with each outcome of a
probability experiment.
Discrete Random Variable a random variable that has a finite or countable number of possible
outcomes.
Measures of Variation 3-3
Range of a Set the difference between the maximum and minimum data values in the set.
Deviation of a Set Entry the difference between the entry and the mean of the data set.
Notation: If is the mean of a set, then the deviation o
Spring 2010
1.
Math 15 Ch 1-2 Practice Problems
Give an example of each of the following types of data. Explain why the example fits in
the category that you chose.
a.
discrete
b.
nominal
c.
interval
d.
2.
Name
ratio
Given the quiz scores below,
18
15
20
Math 15 Ch 2-3 Review Problems
1.
Name
Listed below are the cholesterol levels (in milligrams per deciliter) of a sample of 30 adults.
171
245
205
198
155
165
224
205
193
a)
Construct a frequency histogram using ten classes. Use 150 as the lower class lim
Spring, 2010 Math 15 Chapters 9 through 10 Review Name Key
Multiple Choice: Write the letter of the correct response for each question in the blank provided.
D 1. Given a sample size of n = 35 at a level of signiﬁcance or = 0.10 , identify the
conditions