Question 1

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 2

Find the mode (if any) of the list of data.
16, 16, 18, 18, 16, 17, 18, 16

Accepted Answer

A)  16 
B)  17 
C)  16.5 
D)  18 
E)  15 
A)  16 
B)  17 
C)  16.5 
D)  18 
E)  15

Question 3

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 4

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 5

Find the mean of the list of data.
11, 13, 15, 15, 13, 11

Accepted Answer

A)  14 
B)  12 
C)  15 
D)  11 
E)  13 
A)  14 
B)  12 
C)  15 
D)  11 
E)  13

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

Which of the following illustrations is a line graph?

Accepted Answer

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

Question 8

If the symbol   = 1,800 cars, estimate what the symbol   represents.

Accepted Answer

A)  about 900 cars 
B)  about 1,800 cars 
C)  about 600 cars 
D)  about 500 cars 
A)  about 900 cars 
B)  about 1,800 cars 
C)  about 600 cars 
D)  about 500 cars

Question 9

Several groceries reported differing prices for a bread. The prices are as follows: 2.3, 2.6, 3.2, 2.8, 3.1, 3, 2.2, 2, 2.8. Find the mean, median, and mode of the prices for a bread. Then find the range of the prices.

Accepted Answer

A)  mean: $3.67, median: $3.8, mode: $1.8, range: $2.2 
B)  mean: $2.67, median: $2.8, mode: $2.8, range: $1.2 
C)  mean: $1.67, median: $4.8, mode: $3.8, range: $3.2 
D)  mean: $4.67, median: $1.8, mode: $4.8, range: $0.5 
E)  mean: $0.67, median: $5.8, mode: $0.8, range: $4.2 
A)  mean: $3.67, median: $3.8, mode: $1.8, range: $2.2 
B)  mean: $2.67, median: $2.8, mode: $2.8, range: $1.2 
C)  mean: $1.67, median: $4.8, mode: $3.8, range: $3.2 
D)  mean: $4.67, median: $1.8, mode: $4.8, range: $0.5 
E)  mean: $0.67, median: $5.8, mode: $0.8, range: $4.2

Question 10

How many more pet cats are there than pet dogs?
Is it possible to use bar graphs in this case?

Accepted Answer

A)  True 
B)  False 
A)  True 
B)  False

Question 11

Frank's algebra grade is based on the average of four exams, which will count equally. His grades are 85, 70, 70 and 85. Find his average.

Accepted Answer

A)  72.5 
B)  77.5 
C)  82.5 
D)  92.5 
E)  87.5 
A)  72.5 
B)  77.5 
C)  82.5 
D)  92.5 
E)  87.5

Question 12

Which of the following illustrations is a histogram?

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

Several computer stores reported differing prices for a toner cartridge for a laser printer. The prices are as follows: 59, 50, 77, 70, 71, 73, 54, 56, 70. Find the mode of the prices for a toner cartridge.

Accepted Answer

A)  $69 
B)  $70 
C)  $71 
D)  $72 
E)  $68 
A)  $69 
B)  $70 
C)  $71 
D)  $72 
E)  $68

Question 15

Find the weighted mean of a set of values. Round to the nearest tenth. $$\begin{array} { | c | c | } 
\hline \text { Value of } x & \begin{array} { c } 
\text { The weights to } \
\text { the } x \text { values }
\end{array} \
\hline 3 & 20 \
\hline 4 & 34 \
\hline 2 & 47 \
\hline 1 & 54 \
\hline
\end{array}$$

Accepted Answer

A)  2.2 
B)  38.8 
C)  15.5 
D)  2.5 
A)  2.2 
B)  38.8 
C)  15.5 
D)  2.5

Question 16

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)  $\frac { 1 } { 4 }$

Question 17

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 18

Raul has an adjusted income of $153,850, is married, and files jointly. Compute his tax.

Accepted Answer

A)  $32,082.50 
B)  $10,976.00 
C)  $33,258.50 
D)  $22,282.50 
E)  $22,377.50 
A)  $32,082.50 
B)  $10,976.00 
C)  $33,258.50 
D)  $22,282.50 
E)  $22,377.50

Question 19

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 20

Match between columns
                        Premises: table, bar graph, histogram, pie chart
table, bar graph, histogram

Accepted Answer

The Answer of The number of hours spent studying for is...

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

Find the mode (if any) of the list of data. 16, 16, 18, 18, 16, 17, 18, 16

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

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?

Find the mean of the list of data. 11, 13, 15, 15, 13, 11

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

Which of the following illustrations is a line graph?

If the symbol = 1,800 cars, estimate what the symbol represents.

Several groceries reported differing prices for a bread. The prices are as follows: 2.3, 2.6, 3.2, 2.8, 3.1, 3, 2.2, 2, 2.8. Find the mean, median, and mode of the prices for a bread. Then find the range of the prices.

How many more pet cats are there than pet dogs? Is it possible to use bar graphs in this case?

Frank's algebra grade is based on the average of four exams, which will count equally. His grades are 85, 70, 70 and 85. Find his average.

Which of the following illustrations is a histogram?

Several computer stores reported differing prices for a toner cartridge for a laser printer. The prices are as follows: 59, 50, 77, 70, 71, 73, 54, 56, 70. Find the mode of the prices for a toner cartridge.

Find the weighted mean of a set of values. Round to the nearest tenth. Value of x The weights to the x values 3 20 4 34 2 47 1 54

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.

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

Raul has an adjusted income of $153,850, is married, and files jointly. Compute his tax.

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

Whole Numbers

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Fractions and Mixed Numbers

Decimals

Ratio, Proportion, and Measurement

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An Introduction to Algebra

An Introduction to Geometry

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Exam 7: Graphs, Statistics, and Probability

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

Find the mode (if any) of the list of data. 16, 16, 18, 18, 16, 17, 18, 16

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

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?

Find the mean of the list of data. 11, 13, 15, 15, 13, 11

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

Which of the following illustrations is a line graph?

If the symbol = 1,800 cars, estimate what the symbol represents.

Several groceries reported differing prices for a bread. The prices are as follows: 2.3, 2.6, 3.2, 2.8, 3.1, 3, 2.2, 2, 2.8. Find the mean, median, and mode of the prices for a bread. Then find the range of the prices.

How many more pet cats are there than pet dogs? Is it possible to use bar graphs in this case?

Frank's algebra grade is based on the average of four exams, which will count equally. His grades are 85, 70, 70 and 85. Find his average.

Which of the following illustrations is a histogram?

Several computer stores reported differing prices for a toner cartridge for a laser printer. The prices are as follows: 59, 50, 77, 70, 71, 73, 54, 56, 70. Find the mode of the prices for a toner cartridge.

Find the weighted mean of a set of values. Round to the nearest tenth. Value of x The weights to the x values 3 20 4 34 2 47 1 54

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.

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

Raul has an adjusted income of $153,850, is married, and files jointly. Compute his tax.

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

Whole Numbers

The Integers

Fractions and Mixed Numbers

Decimals

Ratio, Proportion, and Measurement

Percent

An Introduction to Algebra

An Introduction to Geometry

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