Question 1

Find the mean. If necessary, round to one decimal place.
-19, 41, 83, 20, 115, 63

Accepted Answer

A) 56.8 
B) 68.2 
C) 57.3 
D) 56.3 
A) 56.8 
B) 68.2 
C) 57.3 
D) 56.3

Question 2

Fill in the blank with one of the words or phrases listed below. $$\begin{array} { l l l l l } 
\text { outcomes } & \text { bar } & \text { experiment } & \text { mean } & \text { tree diagram } \
\text { pictograph } & \text { line } & \text { class interval } & \text { median } & \text { probability } \
\text { histogram } & \text { circle } & \text { class frequency } & \text { mode } &
\end{array}$$
-A(n)_______graph displays information with a line that connects data points.

Accepted Answer

A) line 
B) circle 
C) bar 
D) probability 
A) line 
B) circle 
C) bar 
D) probability

Question 3

Find the mean, median, and mode of the list of numbers. If necessary, round to the nearest tenth.
-90, 82, 78, 78, 90, 92

Accepted Answer

A) mean: 86 median: 85 mode: 90 
B) mean: 85 median: 86 mode: 78 and 90 
C) mean: 86 median: 86 mode: 78 
D) mean: 85 median: 78 mode: 92 
A) mean: 86 median: 85 mode: 90 
B) mean: 85 median: 86 mode: 78 and 90 
C) mean: 86 median: 86 mode: 78 
D) mean: 85 median: 78 mode: 92

Question 4

The bar graph shows the number of tickets sold each week by the garden club for their annual flower show.  
-How many more tickets were sold during week 6 than week 2?

Accepted Answer

A) 30 tickets 
B) 13 tickets 
C) 8 tickets 
D) 18 tickets 
A) 30 tickets 
B) 13 tickets 
C) 8 tickets 
D) 18 tickets

Question 5

The circle graph shows the results of the student council presidential election. The complete circular area represents 100%
of the votes.
-Student Council President   The circle graph shows what percent of the vote each person received. What percent of the votes did Matt and Ben receive together?

Accepted Answer

A) 22% 
B) 39% 
C) 61% 
D) 17% 
A) 22% 
B) 39% 
C) 61% 
D) 17%

Question 6

The following pictograph shows the number of bicyclists who participated in the Labor Day weekend bicycle race for the
years 2003-2009. Use the graph to answer the question.  
-In what years was there an increase in the number of cyclists who participated in the race?

Accepted Answer

A) 2003, 2005, 2009 
B) 2004, 2005, 2009 
C) 2004, 2006, 2007 
D) 2005, 2008, 2009 
A) 2003, 2005, 2009 
B) 2004, 2005, 2009 
C) 2004, 2006, 2007 
D) 2005, 2008, 2009

Question 7

Find the mean. If necessary, round to one decimal place.
-76, 46, 76, 99, 46

Accepted Answer

A) 69.1 
B) 85.8 
C) 68.6 
D) 68.1 
A) 69.1 
B) 85.8 
C) 68.6 
D) 68.1

Question 8

Find the mode or modes (if any).
-20, 38, 46, 38, 49, 38, 49

Accepted Answer

A) 38 
B) 49 
C) 46 
D) 39.7 
A) 38 
B) 49 
C) 46 
D) 39.7

Question 9

Find the mean. If necessary, round to one decimal place.
-5, 4, 10, 6, 12, 9

Accepted Answer

A) 9.2 
B) 8.2 
C) 7.7 
D) 6.2 
A) 9.2 
B) 8.2 
C) 7.7 
D) 6.2

Question 10

Find the median. If necessary, round to one decimal place.
-2, 2, 22, 13, 28, 42, 39, 32

Accepted Answer

A) 22.5 
B) 28 
C) 25 
D) 22 
A) 22.5 
B) 28 
C) 25 
D) 22

Question 11

Find the probability of the event if a single choice is made from a bag.
-A bag contains 13 balls numbered 1 through 13. What is the probability of selecting a ball that has an even number when one ball is drawn from the bag?

Accepted Answer

A) 6 
B)  $\frac { 13 } { 6 }$ 
C)  $\frac { 6 } { 13 }$ 
D)  $\frac { 2 } { 13 }$ 
A) 6 
B)  $\frac { 13 } { 6 }$ 
C)  $\frac { 6 } { 13 }$ 
D)  $\frac { 2 } { 13 }$

Question 12

Draw a tree diagram for the experiment to find the number of outcomes.
-Spinning the spinner twice

Accepted Answer

A) 9 outcomes 
B) 27 outcomes 
C) 6 outcomes 
D) 3 outcomes 
A) 9 outcomes 
B) 27 outcomes 
C) 6 outcomes 
D) 3 outcomes

Question 13

The circle graph summarizes the results of a survey of the favorite movie category chosen by a group of adults.  
-1800 adults answer the survey. How many of the survey respondents said that they favor comedies? Round to the nearest whole.

Accepted Answer

A) 3350 respondents 
B) 481 respondents 
C) 603 respondents 
D) 167 respondents 
A) 3350 respondents 
B) 481 respondents 
C) 603 respondents 
D) 167 respondents

Question 14

Suppose that the numbers 1 through 10 are each written on a scrap of paper and placed in a bag. You then select one
number from the bag.
-What is the probability of choosing a 4 or a 7 from the bag?

Accepted Answer

A)  $\frac { \mathrm { b } } { 10 }$ 
B)  $\frac { 1 } { 10 }$ 
C)  $\frac { 1 } { 5 }$ 
D)  $\frac { 11 } { 10 }$ 
A)  $\frac { \mathrm { b } } { 10 }$ 
B)  $\frac { 1 } { 10 }$ 
C)  $\frac { 1 } { 5 }$ 
D)  $\frac { 11 } { 10 }$

Question 15

Use the information given to draw a vertical bar graph. Clearly label the bars on the graph shown below.
-Visitors of Jazz Festival $$\begin{array} { c | c } 
\text { Year } & \text { Visitors (in thousands) } \
\hline 1981 & 12 \
1991 & 17 \
2001 & 20 \
2003 & 23
\end{array}$$

Accepted Answer

The answer of Use the information given to draw a...

Question 16

The line graph shows the recorded hourly temperatures in degrees Fahrenheit at an airport.  
-During which hours was the temperature increasing?

Accepted Answer

A) 9 a.m. to 1 p.m. 
B) 1 p.m. to 4 p.m. and 5 p.m. to 6 p.m. 
C) 9 a.m. to 11 a.m. and 12 p.m. to 1 p.m. 
D) 1 p.m. to 6 p.m. 
A) 9 a.m. to 1 p.m. 
B) 1 p.m. to 4 p.m. and 5 p.m. to 6 p.m. 
C) 9 a.m. to 11 a.m. and 12 p.m. to 1 p.m. 
D) 1 p.m. to 6 p.m.

Question 17

The following pictograph shows the number of bicyclists who participated in the Labor Day weekend bicycle race for the
years 2003-2009. Use the graph to answer the question.  
-In what years was there a decline in the number of cyclists who participated in the race?

Accepted Answer

A) 2004, 2006 
B) 2004, 2006, 2007 
C) 2004, 2006, 2007, 2008 
D) 2005, 2008, 2009 
A) 2004, 2006 
B) 2004, 2006, 2007 
C) 2004, 2006, 2007, 2008 
D) 2005, 2008, 2009

Question 18

The circle graph summarizes the results of a survey of the favorite movie category chosen by a group of adults.  
-2800 adults answer the survey. How many of the survey respondents said that they favor drama movies? Round to the nearest whole.

Accepted Answer

A) 2670 respondents 
B) 748 respondents 
C) 854 respondents 
D) 260 respondents 
A) 2670 respondents 
B) 748 respondents 
C) 854 respondents 
D) 260 respondents

Question 19

A deck of cards contains 52 cards. These cards consist of four suits (hearts, spades, clubs, and diamonds)of each of the
following: 2, 3, 4, 5, 6, 7, 8, 9, 10, jack, queen, king, and ace. If a card is chosen from a deck of cards, find the probability of
each event.
-Selecting the 10 of hearts

Accepted Answer

A)  $\frac { 1 } { 26 }$ 
B)  $\frac { 1 } { 13 }$ 
C)  $\frac { 1 } { 52 }$ 
D)  $\frac { 4 } { 13 }$ 
A)  $\frac { 1 } { 26 }$ 
B)  $\frac { 1 } { 13 }$ 
C)  $\frac { 1 } { 52 }$ 
D)  $\frac { 4 } { 13 }$

Question 20

A deck of cards contains 52 cards. These cards consist of four suits (hearts, spades, clubs, and diamonds)of each of the
following: 2, 3, 4, 5, 6, 7, 8, 9, 10, jack, queen, king, and ace. If a card is chosen from a deck of cards, find the probability of
each event.
-Selecting an ace

Accepted Answer

A)  $\frac { 4 } { 13 }$ 
B)  $\frac { 1 } { 52 }$ 
C)  $\frac { 12 } { 13 }$ 
D)  $\frac { 1 } { 13 }$ 
A)  $\frac { 4 } { 13 }$ 
B)  $\frac { 1 } { 52 }$ 
C)  $\frac { 12 } { 13 }$ 
D)  $\frac { 1 } { 13 }$

Find the mean. If necessary, round to one decimal place. -19, 41, 83, 20, 115, 63

Fill in the blank with one of the words or phrases listed below. outcomes bar experiment mean tree diagram pictograph line class interval median probability histogram circle class frequency mode -A(n)_______graph displays information with a line that connects data points.

Find the mean, median, and mode of the list of numbers. If necessary, round to the nearest tenth. -90, 82, 78, 78, 90, 92

The bar graph shows the number of tickets sold each week by the garden club for their annual flower show. -How many more tickets were sold during week 6 than week 2?

The circle graph shows the results of the student council presidential election. The complete circular area represents 100% of the votes. -Student Council President The circle graph shows what percent of the vote each person received. What percent of the votes did Matt and Ben receive together?

The following pictograph shows the number of bicyclists who participated in the Labor Day weekend bicycle race for the years 2003-2009. Use the graph to answer the question. -In what years was there an increase in the number of cyclists who participated in the race?

Find the mean. If necessary, round to one decimal place. -76, 46, 76, 99, 46

Find the mode or modes (if any). -20, 38, 46, 38, 49, 38, 49

Find the mean. If necessary, round to one decimal place. -5, 4, 10, 6, 12, 9

Find the median. If necessary, round to one decimal place. -2, 2, 22, 13, 28, 42, 39, 32

Find the probability of the event if a single choice is made from a bag. -A bag contains 13 balls numbered 1 through 13. What is the probability of selecting a ball that has an even number when one ball is drawn from the bag?

Draw a tree diagram for the experiment to find the number of outcomes. -Spinning the spinner twice

The circle graph summarizes the results of a survey of the favorite movie category chosen by a group of adults. -1800 adults answer the survey. How many of the survey respondents said that they favor comedies? Round to the nearest whole.

Suppose that the numbers 1 through 10 are each written on a scrap of paper and placed in a bag. You then select one number from the bag. -What is the probability of choosing a 4 or a 7 from the bag?

The line graph shows the recorded hourly temperatures in degrees Fahrenheit at an airport. -During which hours was the temperature increasing?

The following pictograph shows the number of bicyclists who participated in the Labor Day weekend bicycle race for the years 2003-2009. Use the graph to answer the question. -In what years was there a decline in the number of cyclists who participated in the race?

The circle graph summarizes the results of a survey of the favorite movie category chosen by a group of adults. -2800 adults answer the survey. How many of the survey respondents said that they favor drama movies? Round to the nearest whole.

A deck of cards contains 52 cards. These cards consist of four suits (hearts, spades, clubs, and diamonds)of each of the following: 2, 3, 4, 5, 6, 7, 8, 9, 10, jack, queen, king, and ace. If a card is chosen from a deck of cards, find the probability of each event. -Selecting the 10 of hearts

A deck of cards contains 52 cards. These cards consist of four suits (hearts, spades, clubs, and diamonds)of each of the following: 2, 3, 4, 5, 6, 7, 8, 9, 10, jack, queen, king, and ace. If a card is chosen from a deck of cards, find the probability of each event. -Selecting an ace

The Whole Numbers

Multiplying and Dividing Fractions

Adding and Subtracting Fractions

Decimals

Ratio, Proportion, and Percent

Geometry

Real Numbers and Introduction to Algebra

Equations, Inequalities, and Problem Solving

Graphing Equations and Inequalities

Systems of Equations

Exponents and Polynomials

Factoring Polynomials

Rational Expressions

Roots and Radicals

Quadratic Equations and Nonlinear Graphs

Algebraic Equations and Inequalities

Filters

Exam 7: Statistics and Probability