Probability
Probability is the likelihood of a particular outcome occurring.
Law of Large Numbers
As we repeat an experiment a large number of times, the ratio of the number of successes in the sample to the total number of trials will approach the prob
Variables
Categorical / Qualitative
Classifies subject by an attribute or characteristic. Hair color, type of professor, make of car
Quantitative Variables
Discrete
A countable number of whole-numbered values (no decimals).
# of people entering a sh
STAT 2000
Spring 2016
Unit 4 Review A
Chapter 4: Gathering Data
Question 1 An experiment is being conducted to determine the effectiveness of an
experimental medication that is supposed to increase reaction time. 150 college students were
randomly selecte
STAT 2000
Spring 2016
Practice Problems for Test 4
1. (Chapter 4) A total of 120 women with major depression were selected and randomly
divided into two groups. Group 1 is given an experimental drug, while Group 2 is
given a placebo. After three months, t
STAT 2000
Spring 2016
Unit 1 Review B
1. (Chapter 2) The following data represent the pulse rate of 16 randomly selected males
after stepping up and down on a 6 inch platform for 3 minutes. Pulse is measured in
beats per minute.
8
9
10
11
12
13
14
68
6
5
STAT 2000
Spring 2016
Unit 1 Review A
Question 1 UGA students are divided into groups by grade level, then a few students are
randomly selected from each grade level. The students included in the sample are asked how
many hours they are taking this semest