Question 1

Consider the following bar graph. What country used the most barrels of oil per day?

Accepted Answer

A)  US 
B)  Japan 
C)  UK 
D)  Germany 
E)  France 
A)  US 
B)  Japan 
C)  UK 
D)  Germany 
E)  France

Question 2

The following list gives 50 pieces of ranked data (ranked from smallest to largest). Find the 72nd percentile.

$\begin{array}{ | c  | } 
\hline  { \text { Ranked data } } \
\hline\begin{array}{lllll}
15 & 49 & 84 & 122 & 147 \
18 & 51 & 89 & 124 & 148 \
23 & 53 & 94 & 127 & 150 \
25 & 54 & 95 & 130 & 154 \
28 & 57 & 99 & 131 & 159 \
32 & 63 & 104 & 133 & 161 \
33 & 68 & 107 & 138 & 165 \
41 & 72 & 111 & 142 & 166 \
45 & 75 & 114 & 142 & 172 \
45 & 81 & 118 & 146 & 177\
\end{array}\
\hline
\end{array}$

Accepted Answer

The answer of The following list gives 50 pieces of...

Question 3

The mileage on six vehicles leased for one year were recorded as follows. $25,750$ mi, $25,790$ mi, $25,850$ mi, $25,720$ mi, $25,660$ mi, $25,870$ mi What is the median measurement?

Accepted Answer

A)  $26,141$ mi 
B)  $25,657$ mi 
C)  $25,770$ mi 
D)  $25,870$ mi 
E)  $25,529$ mi 
A)  $26,141$ mi 
B)  $25,657$ mi 
C)  $25,770$ mi 
D)  $25,870$ mi 
E)  $25,529$ mi

Question 4

The table below shows the average test scores on chapter tests given in a mathematics class. Draw a bar graph for these scores. $\begin{array}{|l|l|l|l|l|l|l|l|l|l|l|l|l|l|l|}
\hline \text { Chapter } & 1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 & 9 & 10 & 11 & 12 & 13 & 14 \
\hline \text { Score } & 80 & 81 & 75 & 76 & 85 & 81 & 76 & 62 & 73 & 72 & 79 & 63 & 84 & 73 \
\hline
\end{array}$

Accepted Answer

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

Question 5

Consider the following bar graph. What is the total number of barrels of oil per day used by all the countries listed?

Accepted Answer

A)  29.3 million barrels 
B)  38 million barrels 
C)  43.2 million barrels 
D)  34.2 million barrels 
E)  19 million barrels 
A)  29.3 million barrels 
B)  38 million barrels 
C)  43.2 million barrels 
D)  34.2 million barrels 
E)  19 million barrels

Question 6

Find the sample standard deviation from the set of measurements below. $24,58,77,41,69,22,58,85,92,38,13$

Accepted Answer

A)  $S = 19$ 
B)  $S = 31$ 
C)  $s = 29$ 
D)  $s = 24$ 
E)  $s = 26$ 
A)  $S = 19$ 
B)  $S = 31$ 
C)  $s = 29$ 
D)  $s = 24$ 
E)  $s = 26$

Question 7

A hygrothermograph is used by the weather services to record temperature and relative humidity (see figure labeled "Hygrothermograph"). The lower part of the graph is used to measure relative humidity from 0% to 100%. The upper part of the graph is used to measure temperature from 10° F to 110° F. What was the highest temperature recorded? Use the data in the figure to answer this question.

Accepted Answer

A)  85° F 
B)  100° F 
C)  80° F 
D)  90° F 
E)  95° F 
A)  85° F 
B)  100° F 
C)  80° F 
D)  90° F 
E)  95° F

Question 8

Find the median measurement for the set of measurements. $9,237$ m, $9,227$ m, $9,243$ m, $9,242$ m, $9,232$ m
__________ m

Accepted Answer

The answer of Find the median measurement for the set...

Question 9

The shipment times in hours for a load of goods from a factory to market are tabulated in the frequency distribution in the table below. Draw a histogram for the data displayed.   $$\begin{array} { | l c | } 
\hline \text { Life of bulb (hours) } & \text { Frequency t} \
\hline - 0.5 - 499.5 & 2 \
499.5 - 999.5 & 9 \
999.5 - 1,499.5 & 14 \
& \
1,499.5 - 1,999.5 & 22 \
1,999.5 - 2,499.5 & 29 \
2,499.5 - 2,999.5 & 34 \
2,999.5 - 3,499.5 & 14 \
3,499.5 - 3,999.5 & b \
\hline
\end{array}$$

Accepted Answer

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

Question 10

Find the median measurement for the set of measurements. $6.647$ mm, $6.643$ mm, $6.656$ mm, $6.651$ mm, $6.649$ mm
__________ mm

Accepted Answer

The answer of Find the median measurement for the set...

Question 11

The sample space is the set of cards taken two at a time from a standard deck of cards that are less than 4. What is the probability that the sum of the two cards is 6?

Accepted Answer

A)  $\frac { 1 } { 17 }$ 
B)  $\frac { 4 } { 7 }$ 
C)  $\frac { 3 } { 16 }$ 
D)  $\frac { 3 } { 23 }$ 
E)  $\frac { 4 } { 17 }$ 
A)  $\frac { 1 } { 17 }$ 
B)  $\frac { 4 } { 7 }$ 
C)  $\frac { 3 } { 16 }$ 
D)  $\frac { 3 } { 23 }$ 
E)  $\frac { 4 } { 17 }$

Question 12

$\begin{array}{|lc|}
\hline \text { Shipment time (hours) } & \text { Frequency t}  \
\hline 22.5-27.5 & 23 \
27.5-32.5 & 401 \
32.5-37.5 & 794 \
37.5-42.5 & 703 \
42.5-47.5 & 503 \
47.5-52.5 & 41\
\hline
\end{array}$ Use the frequency distribution to find the mean. Please round your answer to the nearest integer, if necessary.
Use the frequency distribution to find the sample standard deviation. Please round your answer to the nearest integer, if necessary.
Does the data form a normal distribution? Remember: if the data fall within 2% of the empirical rule of 68%, 95%, and 99.7% for one, two, or three standard deviations, respectively, they form a normal distribution.

Accepted Answer

The answer of \(\begin{array}{|lc|}
\hline \text { Shipment time (hours) }...

Question 13

A department spends $16,349 of its $181,500 budget for supplies. What angle of a circle would show the percent of money the department spends on things other than supplies? Round your answer to the nearest tenth.

Accepted Answer

A)  328.1o 
B)  328.0o 
C)  327.6o 
D)  327.8o 
E)  164.0o 
A)  328.1o 
B)  328.0o 
C)  327.6o 
D)  327.8o 
E)  164.0o

Question 14

Find the mean measurement for the set of measurements. 0.88, 0.34, 1.66, 0.77, 1.05, 0.75, 1.11, 1.99, 0.065

Accepted Answer

A)  0.96 
B)  3.88 
C)  8.62 
D)  3.83 
E)  1.40 
A)  0.96 
B)  3.88 
C)  8.62 
D)  3.83 
E)  1.40

Question 15

The illumination of a light bulb is targeted at 1,170 lumens. The standard deviation is ±16.6 A technician randomly selects 15 bulbs per hour and records the mean illumination each hour. Determine the most accurate mean control chart drawn from the data shown in the table.
 
Hour
Illumination
1
1,145
2
1,156
3
1,141
4
1,183
5
1,180
6
1,180
Hour
Illumination
7
1,177
8
1,191
9
1,193
10
1,188
11
1,172
12
1,171
Hour
Illumination
13
1,179
14
1,161
15
1,159
16
1,173
17
1,190
18
1,143
Hour
Illumination
19
1,181
20
1,187
21
1,191
22
1,144
23
1,158
24
1,181
Hour
Illumination
25
1,192
26
1,191
27
1,165
28
1,181
29
1,168
30
1,195

Accepted Answer

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

Question 16

Candidate A was one of four candidate in an election. Of 28,405 votes cast, 4,840 were for Candidate A. What angle of a circle would show the percent of votes not cast for Candidate A? Round your answer to the nearest tenth.

Accepted Answer

A)  305.9o 
B)  300.3o 
C)  307.2o 
D)  152.9o 
E)  298.7o 
A)  305.9o 
B)  300.3o 
C)  307.2o 
D)  152.9o 
E)  298.7o

Question 17

Over an eight day period of time the high temperature of each day was recorded in degrees Fahrenheit as follows. 65, 76, 87, 75, 77, 82, 88, 64.
What is the mean measurement?

Accepted Answer

A)  616 
B)  76 
C)  72 
D)  77 
E)  308 
A)  616 
B)  76 
C)  72 
D)  77 
E)  308

Question 18

The sample space of the cards with a value less than 4 taken two at a time from a standard deck is: [(2C, 2D),(2D, 2C),(2C, 2H),(2H, 2C),(2C, 2S),(2S, 2C),(2D, 2H),(2H, 2D),(2D, 2S),(2S, 2D),(2H, 2S),(2S, 2H),(3C, 3D),(3D, 3C),(3C, 3H),(3H, 3C),(3C, 3S),(3S, 3C),(3D, 3H),(3H, 3D),(3D, 3S),(3S, 3D),(3H, 3S),(3S, 3H),(2C, 3D),(3D, 2C),(2C, 3H),(3H, 2C),(2C, 3S),(3S, 2C),(2D, 3H),(3H, 2D),(2D, 3S),(3S, 2D),(2H, 3S),(3S, 2H),(2C, 3C),(3C, 2C),(2D, 3D),(3D, 2D),(2H, 3H),(3H, 2H),(2S, 3S),(3S, 2S),(3C, 2D),(2D, 3C),(3C, 2H),(2H, 3C),(3C, 2S),(2S, 3C),(3D, 2H),(2H, 3D),(3D, 2S),(2S, 3D),(3H, 2S),(2S, 3H) ]

Accepted Answer

A)  true 
B)  false 
A)  true 
B)  false

Question 19

The mileage on six vehicles leased for one year were recorded as follows. 25,740 mi, 25,720 mi, 25,810 mi, 25,830 mi, 25,840 mi
What is the mean measurement?

Accepted Answer

A)  25,540 mi 
B)  25,780 mi 
C)  103,120 mi 
D)  26,000 mi 
E)  154,680 mi 
A)  25,540 mi 
B)  25,780 mi 
C)  103,120 mi 
D)  26,000 mi 
E)  154,680 mi

Question 20

Find the median measurement for the set of measurements. $0.011$ , $0.117$ , $0.058$ , $0.192$ , $0.224$ , $0.188$ , $0.227$ , $0.335$ , $0.532$ , $0.343$ , $0.196$ , $0.253$

Accepted Answer

A)  $0.247$ 
B)  $0.186$ 
C)  $0.223$ 
D)  $0.21$ 
E)  $0.23$ 
A)  $0.247$ 
B)  $0.186$ 
C)  $0.223$ 
D)  $0.21$ 
E)  $0.23$

Consider the following bar graph. What country used the most barrels of oil per day?

The following list gives 50 pieces of ranked data (ranked from smallest to largest). Find the 72nd percentile. Ranked data 15 49 84 122 147 18 51 89 124 148 23 53 94 127 150 25 54 95 130 154 28 57 99 131 159 32 63 104 133 161 33 68 107 138 165 41 72 111 142 166 45 75 114 142 172 45 81 118 146 177

The mileage on six vehicles leased for one year were recorded as follows. $25,750$ mi, $25,790$ mi, $25,850$ mi, $25,720$ mi, $25,660$ mi, $25,870$ mi What is the median measurement?

The table below shows the average test scores on chapter tests given in a mathematics class. Draw a bar graph for these scores. Chapter 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Score 80 81 75 76 85 81 76 62 73 72 79 63 84 73

Consider the following bar graph. What is the total number of barrels of oil per day used by all the countries listed?

Find the sample standard deviation from the set of measurements below. $24,58,77,41,69,22,58,85,92,38,13$

Find the median measurement for the set of measurements. $9,237$ m, $9,227$ m, $9,243$ m, $9,242$ m, $9,232$ m __________ m

Find the median measurement for the set of measurements. $6.647$ mm, $6.643$ mm, $6.656$ mm, $6.651$ mm, $6.649$ mm __________ mm

The sample space is the set of cards taken two at a time from a standard deck of cards that are less than 4. What is the probability that the sum of the two cards is 6?

A department spends $16,349 of its $181,500 budget for supplies. What angle of a circle would show the percent of money the department spends on things other than supplies? Round your answer to the nearest tenth.

Find the mean measurement for the set of measurements. 0.88, 0.34, 1.66, 0.77, 1.05, 0.75, 1.11, 1.99, 0.065

Candidate A was one of four candidate in an election. Of 28,405 votes cast, 4,840 were for Candidate A. What angle of a circle would show the percent of votes not cast for Candidate A? Round your answer to the nearest tenth.

Over an eight day period of time the high temperature of each day was recorded in degrees Fahrenheit as follows. 65, 76, 87, 75, 77, 82, 88, 64. What is the mean measurement?

The mileage on six vehicles leased for one year were recorded as follows. 25,740 mi, 25,720 mi, 25,810 mi, 25,830 mi, 25,840 mi What is the mean measurement?

Find the median measurement for the set of measurements. $0.011$ , $0.117$ , $0.058$ , $0.192$ , $0.224$ , $0.188$ , $0.227$ , $0.335$ , $0.532$ , $0.343$ , $0.196$ , $0.253$

Basic Concepts

Signed Numbers and Powers of 10

The Metric System

Measurement

Polynomials: an Introduction to Algebra

Equations and Formulas

Ratio and Proportion

Graphing Linear Equations

Systems of Linear Equations

Factoring Algebraic Expressions

Quadratic Equations

Geometry

Right Triangle Trigonometry

Trigonometry With Any Angle

Binary and Hexadecimal Numbers

Filters

Exam 15: Basic Statistics

Consider the following bar graph. What country used the most barrels of oil per day?

The following list gives 50 pieces of ranked data (ranked from smallest to largest). Find the 72nd percentile. Ranked data 15 49 84 122 147 18 51 89 124 148 23 53 94 127 150 25 54 95 130 154 28 57 99 131 159 32 63 104 133 161 33 68 107 138 165 41 72 111 142 166 45 75 114 142 172 45 81 118 146 177

The mileage on six vehicles leased for one year were recorded as follows. 25,75025,75025,750 mi, 25,79025,79025,790 mi, 25,85025,85025,850 mi, 25,72025,72025,720 mi, 25,66025,66025,660 mi, 25,87025,87025,870 mi What is the median measurement?

The table below shows the average test scores on chapter tests given in a mathematics class. Draw a bar graph for these scores. Chapter 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Score 80 81 75 76 85 81 76 62 73 72 79 63 84 73

Consider the following bar graph. What is the total number of barrels of oil per day used by all the countries listed?

Find the sample standard deviation from the set of measurements below. 24,58,77,41,69,22,58,85,92,38,1324,58,77,41,69,22,58,85,92,38,1324,58,77,41,69,22,58,85,92,38,13

Find the median measurement for the set of measurements. 9,2379,2379,237 m, 9,2279,2279,227 m, 9,2439,2439,243 m, 9,2429,2429,242 m, 9,2329,2329,232 m __________ m

Find the median measurement for the set of measurements. 6.6476.6476.647 mm, 6.6436.6436.643 mm, 6.6566.6566.656 mm, 6.6516.6516.651 mm, 6.6496.6496.649 mm __________ mm

The sample space is the set of cards taken two at a time from a standard deck of cards that are less than 4. What is the probability that the sum of the two cards is 6?

A department spends $16,349 of its $181,500 budget for supplies. What angle of a circle would show the percent of money the department spends on things other than supplies? Round your answer to the nearest tenth.

Find the mean measurement for the set of measurements. 0.88, 0.34, 1.66, 0.77, 1.05, 0.75, 1.11, 1.99, 0.065

Candidate A was one of four candidate in an election. Of 28,405 votes cast, 4,840 were for Candidate A. What angle of a circle would show the percent of votes not cast for Candidate A? Round your answer to the nearest tenth.

Over an eight day period of time the high temperature of each day was recorded in degrees Fahrenheit as follows. 65, 76, 87, 75, 77, 82, 88, 64. What is the mean measurement?

The mileage on six vehicles leased for one year were recorded as follows. 25,740 mi, 25,720 mi, 25,810 mi, 25,830 mi, 25,840 mi What is the mean measurement?

Find the median measurement for the set of measurements. 0.0110.0110.011 , 0.1170.1170.117 , 0.0580.0580.058 , 0.1920.1920.192 , 0.2240.2240.224 , 0.1880.1880.188 , 0.2270.2270.227 , 0.3350.3350.335 , 0.5320.5320.532 , 0.3430.3430.343 , 0.1960.1960.196 , 0.2530.2530.253

Basic Concepts

Signed Numbers and Powers of 10

The Metric System

Measurement

Polynomials: an Introduction to Algebra

Equations and Formulas

Ratio and Proportion

Graphing Linear Equations

Systems of Linear Equations

Factoring Algebraic Expressions

Quadratic Equations

Geometry

Right Triangle Trigonometry

Trigonometry With Any Angle

Binary and Hexadecimal Numbers

Filters

The mileage on six vehicles leased for one year were recorded as follows. $25,750$ mi, $25,790$ mi, $25,850$ mi, $25,720$ mi, $25,660$ mi, $25,870$ mi What is the median measurement?

Find the sample standard deviation from the set of measurements below. $24,58,77,41,69,22,58,85,92,38,13$

Find the median measurement for the set of measurements. $9,237$ m, $9,227$ m, $9,243$ m, $9,242$ m, $9,232$ m __________ m

Find the median measurement for the set of measurements. $6.647$ mm, $6.643$ mm, $6.656$ mm, $6.651$ mm, $6.649$ mm __________ mm

Find the median measurement for the set of measurements. $0.011$ , $0.117$ , $0.058$ , $0.192$ , $0.224$ , $0.188$ , $0.227$ , $0.335$ , $0.532$ , $0.343$ , $0.196$ , $0.253$