Chapter 7 AP Statistics Practice Test
Section I: Multiple Choice Select til—ebest answer for each question.
0 A study of voting ehoseSgp—j—m '. d v—ohers tran;_.
dom shortly after an election. f rﬁﬁéyﬁad
Voted in the election. Election records show that o

Get your bearings A large container of ball bearings
has mean diameter 2.5003 centimeters (cm). This
poreach boldface number in Exercises5to& (1) state
whether it is a parameter or a statistic and (2) use appropriate notation to describe each number, for

Chapter 7 Solutions
Quiz 7.1A
1. (a) f) = 0.37 is a statistic; p = 0.41 is a parameter. (b) p = 128 is a parameter; 0' =15 is a
parameter; 3? = 126.07 is a statistic. 2. Answers will vary, but the center of values for Statistic
A should be closer to the a

Chapter 5 Test Review W
Multiple Choice Questions
1. Among a group of boys, 70% like chocolate ice cream, 40% like strawberry ice cream, and 30% like
both. If a boy is randomly selected from the group, what is the probability that he likes either
checolat

+ Section 7.2
1
Sample Proportions
Learning Objectives
After this section, you should be able to
FIND the mean and standard deviation of the sampling distribution of
a sample proportion
DETERMINE whether or not it is appropriate to use the Normal
approxim

TMTA Statistics Exam
1.
The scoring formula for this exam is 4R W + 40, where R is the number of correct answers, W the
number of wrong answers. If a student completely guesses on each of the forty questions on this exam,
then their expected score is
a. 0