Question 1

Refer to the line graph.
At what times (A, B, C or D) do you find the following conditions: runner 1 running and runner 2 stopped?

Accepted Answer

A)  B only 
B)  D only 
C)  C and D 
D)  B and D 
E)  A and B 
A)  B only 
B)  D only 
C)  C and D 
D)  B and D 
E)  A and B B

Question 2

Refer to the following spinner. If the spinner is spun, what is the probability that the arrow will stop on green? Assume that the spinner never stops on a line.

Accepted Answer

A)  $\frac { 1 } { 8 }$ 
B)  $\frac { 5 } { 8 }$ 
C)  $\frac { 3 } { 8 }$ 
D)  $\frac { 1 } { 4 }$ 
A)  $\frac { 1 } { 8 }$ 
B)  $\frac { 5 } { 8 }$ 
C)  $\frac { 3 } { 8 }$ 
D)  $\frac { 1 } { 4 }$ D

Question 3

Find the mean of the list of data.
12, 14, 16, 16, 14, 12

Accepted Answer

A)  15 
B)  13 
C)  16 
D)  17 
E)  14 
A)  15 
B)  13 
C)  16 
D)  17 
E)  14 E

Question 4

Which of the following illustrations is a histogram?

Accepted Answer

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

Question 5

Find the median of the list of data.
0, 0, 4, 7, 0 , 0, 4, 7, 9

Accepted Answer

A)  0 
B)  7 
C)  3 
D)  4 
E)  9 
A)  0 
B)  7 
C)  3 
D)  4 
E)  9

Question 6

List the sample set for an experiment which involves picking a one-digit number.

Accepted Answer

A)  1, 2, 3, 4, 5, 6, 7, 8, 9 
B)  0, 1, 2, 3, 4, 5, 6, 7, 8, 9 
C)  10 
D)  $\infty$ 
A)  1, 2, 3, 4, 5, 6, 7, 8, 9 
B)  0, 1, 2, 3, 4, 5, 6, 7, 8, 9 
C)  10 
D)  $\infty$

Question 7

Find the mean of the list of data.
46, 62, 42, 32, 85, 57, 96, 104

Accepted Answer

A)  64.5 
B)  68.5 
C)  66.5 
D)  65.5 
E)  67.5 
A)  64.5 
B)  68.5 
C)  66.5 
D)  65.5 
E)  67.5

Question 8

Refer to the pie graph that shows the world's languages and the percentages of the population that speak them.
What percentage of the world's population does not speak either Chinese or German?

Accepted Answer

A)  97.6% 
B)  81.1% 
C)  90.2% 
D)  4.8% 
E)  91.6% 
A)  97.6% 
B)  81.1% 
C)  90.2% 
D)  4.8% 
E)  91.6%

Question 9

Refer to the pictograph.
How much more money did parents spend than children?

Accepted Answer

A)  $150 
B)  $105 
C)  $175 
D)  $180 
E)  $145 
A)  $150 
B)  $105 
C)  $175 
D)  $180 
E)  $145

Question 10

Which of the following is the sample set for an experiment which involves tossing three coins?

Accepted Answer

A)  HHH, TTT 
B)  HHH, HHT, HTT, TTT 
C)  HHH, HHT, HTH, THH, TTT 
D)  HHH, HHT, HTH, THH, TTH, THT, HTT, TTT 
A)  HHH, TTT 
B)  HHH, HHT, HTT, TTT 
C)  HHH, HHT, HTH, THH, TTT 
D)  HHH, HHT, HTH, THH, TTH, THT, HTT, TTT

Question 11

Find the semester grade point average for a student that received the following grades. Round to the nearest hundredth.
$\begin{array} { | c | c | c | } 
\hline \text { Course } & \text { Grade } & \text { Credits } \
\hline \text { Mathematics } & \text { C } & 2 \
\hline \text { English } & \text { D } & 1 \
\hline \text { History } & \text { C } & 3 \
\hline \text { Geography } & \text { D } & 3 \
\hline \text { Biology } & \text { B } & 3 \
\hline
\end{array}$

Accepted Answer

A)  2 
B)  2.4 
C)  1.92 
D)  0.4 
A)  2 
B)  2.4 
C)  1.92 
D)  0.4

Question 12

Use the data in the table to make a line graph showing the average acreage (in acres) of U.S. farms for the years 1950 through 1990.
$\begin{array} { | l | l | l | } 
\hline \text { Year } & \begin{array} { l } 
\text { Number of U.S. } \
\text { farms (in } \
\text { millions) }
\end{array} & \begin{array} { l } 
\text { Average size of } \
\text { U.S. farms } \
\text { (acres) }
\end{array} \
\hline 1950 & 5.6 & 214 \
\hline 1960 & 4.0 & 330 \
\hline 1970 & 2.9 & 399 \
\hline 1980 & 2.4 & 441 \
\hline 1990 & 2.1 & 478 \
\hline 2000 & 2.2 & 439 \
\hline
\end{array}$

Accepted Answer

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

Question 13

The magnitudes of the major earthquakes in 1999 are listed below.
$\begin{array} { l l l } 
\text { 1/19/99 } & \text { New Ireland, Papua New Guinea } & 7 \
2 / 6 / 99 & \text { Santa Cruz Islands, S.Pacific Sea } & 7.3 \
3 / 4 / 99 & \text { Celebes Sea, Indonesia } & 7.1 \
4 / 5 / 99 & \text { New Britain, Papua New Guinea } & 7.4 \
4 / 8 / 99 & \text { E.Russia/N.E.China border } & 7.1 \
5 / 10 / 99 & \text { New Britain, Papua New Guinea } & 7.1 \
5 / 16 / 99 & \text { New Britain, Papua New Guinea } & 7.1 \
8 / 17 / 99 & \text { Izmit region, western Turkey } & 7.4 \
9 / 21 / 99 & \text { Taiwan } & 7.8 \
9 / 30 / 99 & \text { Oaxaca, Mexico } & 7.4 \
11 / 12 / 99 & \text { Bolu Province, northwest Turkey } & 7.2
\end{array}$
Find the mean, median, and mode of the magnitudes. Round to the nearest tenth.

Accepted Answer

A)  mean 7.2; mode 7; median 7.3 
B)  mean 7.3; mode 7.2; median 7.2 
C)  mean 7.4; mode 7.2; median 7.2 
D)  mean 7.3; mode 7.1; median 7.2 
E)  mean 7.2; mode 7.1; median 7.2 
A)  mean 7.2; mode 7; median 7.3 
B)  mean 7.3; mode 7.2; median 7.2 
C)  mean 7.4; mode 7.2; median 7.2 
D)  mean 7.3; mode 7.1; median 7.2 
E)  mean 7.2; mode 7.1; median 7.2

Question 14

Roberto received the same score on each of five exams, and his mean score is 84. Find his median score and his modal score.

Accepted Answer

A)  median 79, mode 74 
B)  median 89, mode 89 
C)  median 84, mode 84 
D)  median 74, mode 74 
E)  median 89, mode 79 
A)  median 79, mode 74 
B)  median 89, mode 89 
C)  median 84, mode 84 
D)  median 74, mode 74 
E)  median 89, mode 79

Question 15

Find the median of the list of data.
15, 18, 20, 29, 34, 44

Accepted Answer

A)  22.5 
B)  29 
C)  20 
D)  24.5 
E)  26.7 
A)  22.5 
B)  29 
C)  20 
D)  24.5 
E)  26.7

Question 16

What is the event " getting at least one tails " for the experiment of tossing a coin twice?

Accepted Answer

A)  E = { (T, T), (H, T), (T, H) } 
B)  E = { (H, H), (H, T), (T, H), (T, T) } 
C)  E = { (H, H), (H, T), (T, H) } 
D)  E = { (H, T), (T, H) } 
A)  E = { (T, T), (H, T), (T, H) } 
B)  E = { (H, H), (H, T), (T, H), (T, T) } 
C)  E = { (H, H), (H, T), (T, H) } 
D)  E = { (H, T), (T, H) }

Question 17

The scores on the first exam of the students in a history class were 52, 57, 63, 62, 62, 62, 84, 82, 98, 91, and 100. Kia got a score of 85 and claims that "85 is better than average." Which of the three measures of central tendency is she better than: the mean, the median, or the mode?

Accepted Answer

A)  better than the mean 
B)  worse than the mean 
C)  better than the mode 
D)  worse than the median 
E)  better than the median
F) worse than the mode 
A)  better than the mean 
B)  worse than the mean 
C)  better than the mode 
D)  worse than the median 
E)  better than the median
F) worse than the mode

Question 18

What is the event " getting numbers, whose sum is more then 6 " for the experiment of rolling a die twice?

Accepted Answer

A)  E = { (1, 1),(1, 2), (1, 3), (1, 4), (2, 1), (2, 2), (2, 3), (3, 1), (3, 2), (4, 1) } 
B)  E = { (1, 1), (2, 2), (3, 3), (4, 4), (5, 5), (6, 6) } 
C)  E = { (1, 6), (2, 5), (2, 6), (3, 4), (3, 5), (3, 6), (4, 3), (4, 4), (4, 5), (4, 6), (5, 2), (5, 3), (5, 4), (5, 5), (5, 6), (6, 1), (6, 2), (6, 3), (6, 4), (6, 5), (6, 6) } 
D)  An event cannot happen 
A)  E = { (1, 1),(1, 2), (1, 3), (1, 4), (2, 1), (2, 2), (2, 3), (3, 1), (3, 2), (4, 1) } 
B)  E = { (1, 1), (2, 2), (3, 3), (4, 4), (5, 5), (6, 6) } 
C)  E = { (1, 6), (2, 5), (2, 6), (3, 4), (3, 5), (3, 6), (4, 3), (4, 4), (4, 5), (4, 6), (5, 2), (5, 3), (5, 4), (5, 5), (5, 6), (6, 1), (6, 2), (6, 3), (6, 4), (6, 5), (6, 6) } 
D)  An event cannot happen

Question 19

Assume that the probability that an airplane engine will fail a test is $\frac { 1 } { 2 }$ and that the aircraft in question has 4 engines. What is the sample space for the problem? Use N for not fail and F for fail.

Accepted Answer

NNNN, NNNF, NNFN, NF

Question 20

What is the event " getting an odd number and a tails " for the experiment of rolling a die and then tossing a coin?

Accepted Answer

A)  E = { (1, H), (3, H), (5, H) } 
B)  E = { (2, T), (4, T), (6, T) } 
C)  E = { (2, H), (4, H), (6, H) } 
D)  E = { (1, T), (3, T), (5, T) } 
A)  E = { (1, H), (3, H), (5, H) } 
B)  E = { (2, T), (4, T), (6, T) } 
C)  E = { (2, H), (4, H), (6, H) } 
D)  E = { (1, T), (3, T), (5, T) }

Refer to the line graph. At what times (A, B, C or D) do you find the following conditions: runner 1 running and runner 2 stopped?

Refer to the following spinner. If the spinner is spun, what is the probability that the arrow will stop on green? Assume that the spinner never stops on a line.

Find the mean of the list of data. 12, 14, 16, 16, 14, 12

Which of the following illustrations is a histogram?

Find the median of the list of data. 0, 0, 4, 7, 0 , 0, 4, 7, 9

List the sample set for an experiment which involves picking a one-digit number.

Find the mean of the list of data. 46, 62, 42, 32, 85, 57, 96, 104

Refer to the pie graph that shows the world's languages and the percentages of the population that speak them. What percentage of the world's population does not speak either Chinese or German?

Refer to the pictograph. How much more money did parents spend than children?

Which of the following is the sample set for an experiment which involves tossing three coins?

Find the semester grade point average for a student that received the following grades. Round to the nearest hundredth. Course Grade Credits Mathematics C 2 English D 1 History C 3 Geography D 3 Biology B 3

Use the data in the table to make a line graph showing the average acreage (in acres) of U.S. farms for the years 1950 through 1990. Year Number of U.S. farms (in millions) Average size of U.S. farms (acres) 1950 5.6 214 1960 4.0 330 1970 2.9 399 1980 2.4 441 1990 2.1 478 2000 2.2 439

Roberto received the same score on each of five exams, and his mean score is 84. Find his median score and his modal score.

Find the median of the list of data. 15, 18, 20, 29, 34, 44

What is the event " getting at least one tails " for the experiment of tossing a coin twice?

The scores on the first exam of the students in a history class were 52, 57, 63, 62, 62, 62, 84, 82, 98, 91, and 100. Kia got a score of 85 and claims that "85 is better than average." Which of the three measures of central tendency is she better than: the mean, the median, or the mode?

What is the event " getting numbers, whose sum is more then 6 " for the experiment of rolling a die twice?

Assume that the probability that an airplane engine will fail a test is $\frac { 1 } { 2 }$ and that the aircraft in question has 4 engines. What is the sample space for the problem? Use N for not fail and F for fail.

What is the event " getting an odd number and a tails " for the experiment of rolling a die and then tossing a coin?

Whole Numbers

The Integers

Fractions and Mixed Numbers

Decimals

Ratio, Proportion, and Measurement

Percent

An Introduction to Algebra

An Introduction to Geometry

Filters

Exam 7: Graphs, Statistics, and Probability

Refer to the line graph. At what times (A, B, C or D) do you find the following conditions: runner 1 running and runner 2 stopped?

Refer to the following spinner. If the spinner is spun, what is the probability that the arrow will stop on green? Assume that the spinner never stops on a line.

Find the mean of the list of data. 12, 14, 16, 16, 14, 12

Which of the following illustrations is a histogram?

Find the median of the list of data. 0, 0, 4, 7, 0 , 0, 4, 7, 9

List the sample set for an experiment which involves picking a one-digit number.

Find the mean of the list of data. 46, 62, 42, 32, 85, 57, 96, 104

Refer to the pie graph that shows the world's languages and the percentages of the population that speak them. What percentage of the world's population does not speak either Chinese or German?

Refer to the pictograph. How much more money did parents spend than children?

Which of the following is the sample set for an experiment which involves tossing three coins?

Find the semester grade point average for a student that received the following grades. Round to the nearest hundredth. Course Grade Credits Mathematics C 2 English D 1 History C 3 Geography D 3 Biology B 3

Use the data in the table to make a line graph showing the average acreage (in acres) of U.S. farms for the years 1950 through 1990. Year Number of U.S. farms (in millions) Average size of U.S. farms (acres) 1950 5.6 214 1960 4.0 330 1970 2.9 399 1980 2.4 441 1990 2.1 478 2000 2.2 439

Roberto received the same score on each of five exams, and his mean score is 84. Find his median score and his modal score.

Find the median of the list of data. 15, 18, 20, 29, 34, 44

What is the event " getting at least one tails " for the experiment of tossing a coin twice?

The scores on the first exam of the students in a history class were 52, 57, 63, 62, 62, 62, 84, 82, 98, 91, and 100. Kia got a score of 85 and claims that "85 is better than average." Which of the three measures of central tendency is she better than: the mean, the median, or the mode?

What is the event " getting numbers, whose sum is more then 6 " for the experiment of rolling a die twice?

Assume that the probability that an airplane engine will fail a test is 12\frac { 1 } { 2 }21​ and that the aircraft in question has 4 engines. What is the sample space for the problem? Use N for not fail and F for fail.

What is the event " getting an odd number and a tails " for the experiment of rolling a die and then tossing a coin?

Whole Numbers

The Integers

Fractions and Mixed Numbers

Decimals

Ratio, Proportion, and Measurement

Percent

An Introduction to Algebra

An Introduction to Geometry

Filters

Assume that the probability that an airplane engine will fail a test is $\frac { 1 } { 2 }$ and that the aircraft in question has 4 engines. What is the sample space for the problem? Use N for not fail and F for fail.