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AP Statistics with 6 Practice Tests

Martin Sternstein

Chapter 2

Exploring Two-Variable Data - all with Video Answers

Educators

Section 6

Quiz 6

01:15

Problem 1

Based on the following: Students, teachers, and administrators were asked which of three teacher characteristics (challenging, enthusiastic, strict) they considered most important for a successful classroom experience. Five hundred people in a high school community were surveyed with the following results:
$$\begin{array}{|l|c|c|c|}
\hline & \text { Challenging } & \text { Enthusiastic } & \text { Strict } \\
\hline \text { Student } & 50 & 150 & 50 \\
\hline \text { Teacher } & 125 & 50 & 25 \\
\hline \text { Administrator } & 15 & 10 & 25 \\
\hline\end{array}$$
What percentage of those surveyed were students?
(A) $10 \%$
(B) $20 \%$
(C) $30 \%$
(D) $40 \%$
(E) $50 \%$

Jerrah Biggerstaff
Jerrah Biggerstaff
Numerade Educator
01:22

Problem 2

Based on the following: Students, teachers, and administrators were asked which of three teacher characteristics (challenging, enthusiastic, strict) they considered most important for a successful classroom experience. Five hundred people in a high school community were surveyed with the following results:
$$\begin{array}{|l|c|c|c|}
\hline & \text { Challenging } & \text { Enthusiastic } & \text { Strict } \\
\hline \text { Student } & 50 & 150 & 50 \\
\hline \text { Teacher } & 125 & 50 & 25 \\
\hline \text { Administrator } & 15 & 10 & 25 \\
\hline\end{array}$$
What percentage of those surveyed picked challenging as most important and were teachers?
(A) $25 \%$
(B) $38 \%$
(C) $40 \%$
(D) $62.5 \%$
(E) $65.8 \%$

Jerrah Biggerstaff
Jerrah Biggerstaff
Numerade Educator
01:19

Problem 3

Based on the following: Students, teachers, and administrators were asked which of three teacher characteristics (challenging, enthusiastic, strict) they considered most important for a successful classroom experience. Five hundred people in a high school community were surveyed with the following results:
$$\begin{array}{|l|c|c|c|}
\hline & \text { Challenging } & \text { Enthusiastic } & \text { Strict } \\
\hline \text { Student } & 50 & 150 & 50 \\
\hline \text { Teacher } & 125 & 50 & 25 \\
\hline \text { Administrator } & 15 & 10 & 25 \\
\hline\end{array}$$
What percentage of administrators picked strict as most important?
(A) $5 \%$
(B) $10 \%$
(C) $20 \%$
(D) $25 \%$
(E) $50 \%$

Jerrah Biggerstaff
Jerrah Biggerstaff
Numerade Educator
01:27

Problem 4

Based on the following: Students, teachers, and administrators were asked which of three teacher characteristics (challenging, enthusiastic, strict) they considered most important for a successful classroom experience. Five hundred people in a high school community were surveyed with the following results:
$$\begin{array}{|l|c|c|c|}
\hline & \text { Challenging } & \text { Enthusiastic } & \text { Strict } \\
\hline \text { Student } & 50 & 150 & 50 \\
\hline \text { Teacher } & 125 & 50 & 25 \\
\hline \text { Administrator } & 15 & 10 & 25 \\
\hline\end{array}$$
What percentage of those picking enthusiastic as most important were students?
(A) $30 \%$
(B) $42 \%$
(C) $50 \%$
(D) $60 \%$
(E) $71.4 \%$

Jerrah Biggerstaff
Jerrah Biggerstaff
Numerade Educator
01:11

Problem 5

Based on the following: Students, teachers, and administrators were asked which of three teacher characteristics (challenging, enthusiastic, strict) they considered most important for a successful classroom experience. Five hundred people in a high school community were surveyed with the following results:
$$\begin{array}{|l|c|c|c|}
\hline & \text { Challenging } & \text { Enthusiastic } & \text { Strict } \\
\hline \text { Student } & 50 & 150 & 50 \\
\hline \text { Teacher } & 125 & 50 & 25 \\
\hline \text { Administrator } & 15 & 10 & 25 \\
\hline\end{array}$$
Which group of people were most likely to pick strict as most important?
(A) Student
(B) Teacher
(C) Administrator
(D) Teacher and administrator, equally
(E) Student, teacher, and administrator, equally

Jerrah Biggerstaff
Jerrah Biggerstaff
Numerade Educator
04:33

Problem 6

The mosaic plot below displays the distribution of humanities and science students at a particular college and whether or not they live on or off campus.
(A) The number of humanities students who live on campus is greater than the number of science students who live
on campus.
(B) The proportion of humanities students who live on campus is less than the proportion of science students who live on campus.
(C) The number of humanities students at this college is greater than the number of science students at this college.
(D) The number of students who live on campus is less than the number living off campus.
(E) Among the students living on campus, the proportion who study humanities is less than the proportion who study science.

Manisha Sarker
Manisha Sarker
Numerade Educator
01:12

Problem 7

For what value of $n$ does the following table show perfect independence?
$$
\begin{array}{|c|c|}
\hline 20 & 50 \\
\hline 30 & n \\
\hline
\end{array}
$$
(A) 10
(B) 40
(C) 60
(D) 75
(E) 100

Jerrah Biggerstaff
Jerrah Biggerstaff
Numerade Educator