Measures of Positions and Box Plots () (Section 3-3, 3-4)
(1) z-score or standard score (z ) (p.150)
A z-score or standard score for a value is obtained by subtracting the
mean from the value and dividing the result by the standard deviation.
9:10-11:30am June 21, 2010
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1. (10 points) Let X, Y be two random variables and (x1 , y1 ), ., (xn , yn ) be a sample of
Frequency Distributions and Graphs
Organizing Data (Section 2-1)
1. Frequency distribution ()(p.37)
A frequency distribution is the organization of raw data in table
form, using classes and frequencies.
2. Categorical frequency distr
Parameter and Statistics (p.114)
A parameter is a characteristic or measure obtained by using all
the data values for a specific population.
A statistic is a characteristic or measure obtained by using the
data values from
Introduction: The Nature of Probability and Statistics
What is Statistics ? (p.3)
Statistics is the science of conducting studies to collect, organize,
summarize, analyze, and draw conclusions from data.
Probability and Counting Rules
Sample Spaces and Probability (Section 4-1)
1. Probability Experiment ()
2. Sample Space ()
(tree diagram, p.193)
Example 4-1 (p.192): Sample space for rolling two dies