Question 1

Answer the question.
-The bar graph below shows the number of students by major in the College of Arts and Sciences.  
How many students are majoring in Math?

Accepted Answer

A)  300 
B)  200 
C)  250 
D)  150 
A)  300 
B)  200 
C)  250 
D)  150

Question 2

This double-bar graph shows the number of male (M)and female (F)athletes at a university over a four-year period.
Answer the question.  
-Which year had the smallest number of female athletes?

Accepted Answer

A) 1988 
B) 1987 
C) 1986 
D) 1989 
A) 1988 
B) 1987 
C) 1986 
D) 1989

Question 3

Find the mean for the given frequency distribution.
-$\begin{array}{c|c}
\text { Value } & \text { Frequency } \
\hline 16 & 3 \
19 & 7 \
26 & 6 \
30 & 4 \
35 & 1 \
38 & 1
\end{array}$

Accepted Answer

A)  7.5 
B)  $24.1$ 
C)  $26.5$ 
D)  $26.3$ 
A)  7.5 
B)  $24.1$ 
C)  $26.5$ 
D)  $26.3$

Question 4

This double-bar graph shows the number of male (M)and female (F)athletes at a university over a four-year period.
Answer the question.  
-Which year had the smallest number of male athletes?

Accepted Answer

A) 1989 
B) 1986 
C) 1988 
D) 1987 
A) 1989 
B) 1986 
C) 1988 
D) 1987

Question 5

Find the indicated probability.
-The age distribution of students at a community college is given below. 
$\begin{array} { l r } 
\text { Age (years) } & \text { Number of students (f) } \
\text { Under 21 } & 402 \
21 - 25 & 416 \
26 - 30 & 203 \
31 - 35 & 54 \
\text { Over 35 } & 28 \
\hline & 1103
\end{array}$
A student from the community college is selected at random. Find the probability that the student is at least 31. Round your answer to three decimal places.

Accepted Answer

A) 82 
B) 0.926 
C) 0.074 
D) 0.049 
A) 82 
B) 0.926 
C) 0.074 
D) 0.049

Question 6

Find the median for the given sample data.
-A store manager kept track of the number of newspapers sold each week over a seven-week period. The results are shown below.
55, 35, 215, 196, 263, 240, 230
Find the median number of newspapers sold.

Accepted Answer

A) 196 newspapers 
B) 230 newspapers 
C) 215 newspapers 
D) 176 newspapers 
A) 196 newspapers 
B) 230 newspapers 
C) 215 newspapers 
D) 176 newspapers

Question 7

In a school survey, students showed these preferences for instructional materials. Answer the question.  
-How many degrees are in the central angle for the "radio" sector?

Accepted Answer

A) 5° 
B) 9° 
C) 18° 
D) 180° 
A) 5° 
B) 9° 
C) 18° 
D) 180°

Question 8

Find the mean for the given sample data. Unless otherwise specified, round your answer to one more decimal place than that used for the observations.
-Frank's Furniture employees earned the following amounts last week:   What was the mean amount earned by employees last week? Round your answer to the nearest cent.

Accepted Answer

A) $301.94 
B) $396.78 
C) $347.19 
D) $308.61 
A) $301.94 
B) $396.78 
C) $347.19 
D) $308.61

Question 9

Solve the problem.
-Horace's mean score on five exams is 93.6. Find the sum of his scores.

Accepted Answer

A) 483 
B) 398 
C) 496 
D) 468 
A) 483 
B) 398 
C) 496 
D) 468

Question 10

useful for comparing the size of each category with the whole (ie the proportion of the whole population falling in each category). A bar graph is more useful for comparing the sizes of different categories with each other. Find the mean of the set of data.
-$\begin{array} { l l l l l } 
3.5 & 1.6 & 2.4 & 3.7 & 4.1 \
3.9 & 1.0 & 3.6 & 4.2 & 3.4 \
3.7 & 2.2 & 1.5 & 4.2 & 3.4 \
2.7 & 0.4 & 3.7 & 2.0 & 3.6
\end{array}$
 Round your answer to two decimal places.

Accepted Answer

A) 3.09 
B) 2.94 
C) 3.27 
D) 2.80 
A) 3.09 
B) 2.94 
C) 3.27 
D) 2.80

Question 11

Use this graph to answer the question.  
-Which month in 2010 had the highest sales?

Accepted Answer

A) Month 6 
B) Month 3 
C) Month 12 
D) Month 5 
A) Month 6 
B) Month 3 
C) Month 12 
D) Month 5

Question 12

Find the median.
-5, 8, 18, 27, 31, 42, 47

Accepted Answer

A) 31 
B) 27 
C) 25 
D) 18 
A) 31 
B) 27 
C) 25 
D) 18

Question 13

Find the mean for the given sample data. Unless otherwise specified, round your answer to one more decimal place than that used for the observations.
-The table below gives the total spectator attendance for various U.S. sports in 1997. $$\begin{array} { l c } 
\hline \text { Sport } & \text { Attendance (millions) } \
\hline \text { Pro Baseball } & 64.9 \
\text { College Basketball (Men's) } & 27.7 \
\text { College Basketball (Women's) } & 6.7 \
\text { Pro Basketball (Men's) } & 21.7 \
\text { College Football } & 36.9 \
\text { Pro Football } & 14.8 \
\text { Pro Hockey } & 17.1 \
\hline
\end{array}$$ Find the mean of these attendance numbers.

Accepted Answer

A) 29.2 million 
B) 29.9 million 
C) 28.3 million 
D) 27.1 million 
A) 29.2 million 
B) 29.9 million 
C) 28.3 million 
D) 27.1 million

Question 14

Use the information to complete a circle graph. Note that the circle is divided into 100 equal sections.
-Main form of exercise for employees of one company: 
$\begin{array} { l r } 
\text { None: } & 27 \% \
\text { Walking: } & 16 \% \
\text { Running: } & 7 \% \
\text { Golf: } & 12 \% \
\text { Weight Training: } & 23 \% \
\text { Other: } & 15 \%
\end{array}$

Accepted Answer

A) 
  
B) 
  
C) 
  
D) 
  
A) 
  
B) 
  
C) 
  
D)

Question 15

Find the mean for the given sample data. Unless otherwise specified, round your answer to one more decimal place than that used for the observations.
-Bill kept track of the number of hours he spent exercising each week. The results for four months are shown below. Find the mean number of hours Bill spent exercising per week.
 $\begin{array} { l l l l l l } 9.0 & 8.9 & 6.9 & 8.6 & 8.2 & 9.0 \end{array}$
$\begin{array} { l l l l l l } 6.9 & 6.9 & 9.0 & 9.0 & 8.6 & 6.8 \end{array}$
$\begin{array} { l l l l l l } 8.8 & 8.9 & 8.9 & 8.8 & 8.2 & 6.9 \end{array}$

Accepted Answer

A)  $8.2$ 
B)  $7.8$ 
C)  $8.7$ 
D)  $8.5$ 
A)  $8.2$ 
B)  $7.8$ 
C)  $8.7$ 
D)  $8.5$

Question 16

Kevin asked some of his friends how many hours they had worked during the previous week at their after-school jobs. The results are shown below. $\begin{array}{llllllllllll}
5 & 5 & 5 & 4 & 5 & 5 & 9 & 7 & 5 & 3 & 8 & 5 \
5 & 8 & 5 & 5 & 8 & 5 & 5 & 7 & 5 & 8 & 7 & 4
\end{array}$
$\text { Construct a frequency and relative frequency distribution. Use } 4 \text { classes. }$

Accepted Answer

A) 
  
B) 
  
C) 
  
D) 
  
A) 
  
B) 
  
C) 
  
D)

Question 17

Find the mode or modes.
-20, 27, 46, 27, 49, 27, 49

Accepted Answer

A) 46 
B) 49 
C) 27 
D) 35 
A) 46 
B) 49 
C) 27 
D) 35

Question 18

Find the mode or modes.
-79, 42, 32, 42, 29, 79

Accepted Answer

A) 50.5 
B) 79, 42 
C) 42 
D) 79 
A) 50.5 
B) 79, 42 
C) 42 
D) 79

Question 19

Construct a stem and leaf display for given data.
-The ages of the instructors at a local college are given below. 
36464358
61384249
57343546
62454955

Accepted Answer

A) 
  
B) 
  
C) 
  
D) 
  
A) 
  
B) 
  
C) 
  
D)

Question 20

Find the indicated probability.
-The age distribution of students at a community college is given below. 
$\begin{array} { l c } 
\text { Age (years) } & \text { Number of students (f) } \
\hline \text { Under 21 } & 400 \
21 - 25 & 412 \
26 - 30 & 208 \
31 - 35 & 58 \
\text { Over } 35 & 28 \
\hline & 1106
\end{array}$
 A student from the community college is selected at random. Find the probability that the student is between 26 and 35 inclusive. Round your answer to three decimal places.

Accepted Answer

A) 0.188 
B) 0.052 
C) 266 
D) 0.241 
A) 0.188 
B) 0.052 
C) 266 
D) 0.241

Answer the question. -The bar graph below shows the number of students by major in the College of Arts and Sciences. How many students are majoring in Math?

This double-bar graph shows the number of male (M)and female (F)athletes at a university over a four-year period. Answer the question. -Which year had the smallest number of female athletes?

Find the mean for the given frequency distribution. - Value Frequency 16 3 19 7 26 6 30 4 35 1 38 1

This double-bar graph shows the number of male (M)and female (F)athletes at a university over a four-year period. Answer the question. -Which year had the smallest number of male athletes?

Find the median for the given sample data. -A store manager kept track of the number of newspapers sold each week over a seven-week period. The results are shown below. 55, 35, 215, 196, 263, 240, 230 Find the median number of newspapers sold.

In a school survey, students showed these preferences for instructional materials. Answer the question. -How many degrees are in the central angle for the "radio" sector?

Solve the problem. -Horace's mean score on five exams is 93.6. Find the sum of his scores.

Use this graph to answer the question. -Which month in 2010 had the highest sales?

Find the median. -5, 8, 18, 27, 31, 42, 47

Kevin asked some of his friends how many hours they had worked during the previous week at their after-school jobs. The results are shown below. 5 5 5 4 5 5 9 7 5 3 8 5 5 8 5 5 8 5 5 7 5 8 7 4 $\text { Construct a frequency and relative frequency distribution. Use } 4 \text { classes. }$

Find the mode or modes. -20, 27, 46, 27, 49, 27, 49

Find the mode or modes. -79, 42, 32, 42, 29, 79

Construct a stem and leaf display for given data. -The ages of the instructors at a local college are given below. 36464358 61384249 57343546 62454955

The Art of Problem Solving

The Basic Concepts of Set Theory

Introduction to Logic

Numeration Systems

Number Theory

The Real Numbers and Their Representations

The Basic Concepts of Algebra

Graphs, Functions, and Systems of Equations and Inequalities

Geometry

Counting Methods

Probability

Personal Financial Management

Trigonometry Formerly

Graph Theory

Voting and Apportionment

Filters

Exam 12: Statistics

Answer the question. -The bar graph below shows the number of students by major in the College of Arts and Sciences. How many students are majoring in Math?

This double-bar graph shows the number of male (M)and female (F)athletes at a university over a four-year period. Answer the question. -Which year had the smallest number of female athletes?

Find the mean for the given frequency distribution. - Value Frequency 16 3 19 7 26 6 30 4 35 1 38 1

This double-bar graph shows the number of male (M)and female (F)athletes at a university over a four-year period. Answer the question. -Which year had the smallest number of male athletes?

Find the median for the given sample data. -A store manager kept track of the number of newspapers sold each week over a seven-week period. The results are shown below. 55, 35, 215, 196, 263, 240, 230 Find the median number of newspapers sold.

In a school survey, students showed these preferences for instructional materials. Answer the question. -How many degrees are in the central angle for the "radio" sector?

Solve the problem. -Horace's mean score on five exams is 93.6. Find the sum of his scores.

Use this graph to answer the question. -Which month in 2010 had the highest sales?

Find the median. -5, 8, 18, 27, 31, 42, 47

Use the information to complete a circle graph. Note that the circle is divided into 100 equal sections. -Main form of exercise for employees of one company: None: 27\% Walking: 16\% Running: 7\% Golf: 12\% Weight Training: 23\% Other: 15\%

Find the mode or modes. -20, 27, 46, 27, 49, 27, 49

Find the mode or modes. -79, 42, 32, 42, 29, 79

Construct a stem and leaf display for given data. -The ages of the instructors at a local college are given below. 36464358 61384249 57343546 62454955

The Art of Problem Solving

The Basic Concepts of Set Theory

Introduction to Logic

Numeration Systems

Number Theory

The Real Numbers and Their Representations

The Basic Concepts of Algebra

Graphs, Functions, and Systems of Equations and Inequalities

Geometry

Counting Methods

Probability

Personal Financial Management

Trigonometry Formerly

Graph Theory

Voting and Apportionment

Filters