Question 1

Find $Q _ { 1 } , Q _ { 2 }$, and $Q _ { 3 }$ for the ages of nine students.
$\begin{array} { l l l l l l l l l } 18 & 20 & 21 & 19 & 17 & 36 & 22 & 19 & 24 \end{array}$

Accepted Answer

The answer of Find \(Q _ { 1 } ,...

Question 2

$$\begin{array}{l}
\text { Draw a scatter plot and describe the relationship. }\
\begin{array} { l | c c c c c c c } 
x & 3 & 6 & 7 & 5 & 1 & 4 & 2 \
\hline y & 10 & 1 & 2 & 10 & 5 & 6 & 3
\end{array}
\end{array}$$

Accepted Answer

The answer of \[\begin{array}{l}
\text { Draw a scatter plot and...

Question 3

For the 8 test scores shown, find the percentile rank of 68. 29 87 68 34 60 31 30 61

Accepted Answer

The answer of For the 8 test scores shown, find...

Question 4

Fifty people participated in a poll to determine their favorite ice cream flavor. Use the data to construct a bar graph.
$\begin{array}{l|c}
\text { Flavor } & \text { Number } \
\hline \text { Chocolate } & 15 \
\text { Strawberry } & 8 \
\text { Vanilla } & 13 \
\text { Other } & 14
\end{array}$

Accepted Answer

The answer of Fifty people participated in a poll to...

Question 5

$$\begin{array}{l}
\text { Draw a scatter plot for the data shown. }\
\begin{array} { c | c c c c c c } 
x & 28 & 19 & 25 & 22 & 30 & 18 \
\hline y & 10 & 5 & 2 & 7 & 1 & 9
\end{array}
\end{array}$$

Accepted Answer

The answer of \[\begin{array}{l}
\text { Draw a scatter plot for...

Question 6

$$\begin{array}{l}
\text { These data represent the grades on a college exam. Find the mean }\
\begin{array} { l | r } 
\text { Class limits } & \text { Frequency } \
\hline 50 - 59 & 5 \
60 - 69 & 8 \
70 - 79 & 19 \
80 - 89 & 16 \
90 - 99 & 10
\end{array}
\end{array}$$

Accepted Answer

The answer of \[\begin{array}{l}
\text { These data represent the grades...

Question 7

A small company did a poll of how their employees commuted to work. Use the data to draw a pie chart.
$\begin{array}{l|c}
\text { Method of commute } & \text { Number } \
\hline \text { Car } & 15 \
\text { Bus } & 11 \
\text { Train } & 8 \
\text { Bike } & 2 \
\text { Walk } & 4
\end{array}$

Accepted Answer

The answer of A small company did a poll of...

Question 8

Twenty-five people responded to a questionnaire about what types of pets they had. Construct a frequency distribution for the data $( D =$ dogs only, $\mathrm { C } =$ cats only, $\mathrm { B } =$ both, $\mathrm { N } =$ neither).
$\begin{array} { l l l l l } \mathrm { N } & \mathrm { B } & \mathrm { D } & \mathrm { B } & \mathrm { D } \ \mathrm { B } & \mathrm { B } & \mathrm { B } & \mathrm { B } & \mathrm { C } \ \mathrm { C } & \mathrm { B } & \mathrm { D } & \mathrm { B } & \mathrm { C } \ \mathrm { B } & \mathrm { D } & \mathrm { B } & \mathrm { B } & \mathrm { B } \ \mathrm { D } & \mathrm { B } & \mathrm { B } & \mathrm { C } & \mathrm { N } \end{array}$

Accepted Answer

The answer of Twenty-five people responded to a questionnaire about...

Question 9

$$\begin{array}{l}
\text { Draw a scatter plot and describe the relationship. }\
\begin{array} { c | c c c c c c } 
x & 10 & 8 & 7 & 12 & 14 & 5 \
\hline y & 20 & 19 & 17 & 25 & 28 & 9
\end{array}
\end{array}$$

Accepted Answer

The answer of \[\begin{array}{l}
\text { Draw a scatter plot and...

Question 10

$$\begin{array}{l}
\text { Find the equation of the regression line and predict } y \text { when } x = 16 \text {. }\
\begin{array} { c | c c c c c } 
x & 2 & 4 & 3 & 5 & 1 \
\hline y & 12 & 19 & 16 & 19 & 8
\end{array}
\end{array}$$

Accepted Answer

The answer of \[\begin{array}{l}
\text { Find the equation of the...

Question 11

Find the median. 20 21 22 26 27 33 25

Accepted Answer

The answer of Find the median. 20 21 22 26...

Question 12

The average hourly wage of employees of a certain company is $13.74. Assume the variable is normally distributed. If the standard deviation is $4.25, find the probability that a randomly selected employee earns more than $20.54.

Accepted Answer

The answer of The average hourly wage of employees of...

Question 13

The ages of 40 community college students were gathered. Construct a frequency distribution for the data using five classes.
$\begin{array} { l l l l l l l l } 46 & 17 & 34 & 19 & 42 & 19 & 20 & 48 \ 34 & 51 & 31 & 21 & 43 & 32 & 39 & 17 \ 21 & 21 & 40 & 38 & 42 & 17 & 21 & 45 \ 19 & 39 & 48 & 19 & 17 & 42 & 32 & 19 \ 49 & 19 & 26 & 38 & 43 & 46 & 51 & 39 \end{array}$

Accepted Answer

The answer of The ages of 40 community college students...

Question 14

Find the range. 7 40 6 45 26 4 28 46

Accepted Answer

The answer of Find the range. 7 40 6 45...

Question 15

Fifty 10-year-olds were monitored to determine the number of hours per week they spent watching television, surfing the net, and playing video games. The results were used to obtain the frequency distribution below. Construct a histogram and frequency polygon for the data.
$\begin{array}{l|c}
\text { Class } & \text { Frequency } \
\hline 0-4 & 2 \
5-9 & 7 \
10-14 & 7 \
15-19 & 15 \
20-24 & 10 \
25-29 & 5 \
30-34 & 3 \
35-39 & 1
\end{array}$

Accepted Answer

The answer of Fifty 10-year-olds were monitored to determine the...

Question 16

These data represent the number of stray cats in a small town for the years listed. Draw a time series graph for the data.
$\begin{array}{c|cccccc}
\text { Year } & 1998 & 1999 & 2000 & 2001 & 2002 & 2003 \
\hline \text { Number } & 29 & 38 & 51 & 42 & 45 & 56
\end{array}$

Accepted Answer

The answer of These data represent the number of stray...

Question 17

These data represent the number of students enrolled at a community college. Draw a time series graph for the data.

$\begin{array}{c|ccccccc}
\text { Year } & 1985 & 1986 & 1987 & 1988 & 1989 & 1990 & 1991 \
\hline \text { Number } & 423 & 439 & 432 & 505 & 514 & 520 & 536
\end{array}$

Accepted Answer

The answer of These data represent the number of students...

Question 18

To obtain the frequency distribution below, twenty-three babies were monitored for how many times they cried during the night. Construct a histogram for the data.
$\begin{array}{l|c}
\text { Class } & \text { Frequency } \
\hline 0-2 & 4 \
3-5 & 6 \
6-8 & 9 \
9-11 & 3 \
12-14 & 1
\end{array}$

Accepted Answer

The answer of To obtain the frequency distribution below, twenty-three...

Question 19

Find the variance and standard deviation. 36) 16 6 14 50 6 46

Accepted Answer

The answer of Find the variance and standard deviation. 36)...

Question 20

To obtain the frequency distribution below, twenty-three babies were monitored for how many times they cried during the night. Construct a histogram and frequency polygon for the data.
$\begin{array}{l|c}
\text { Class } & \text { Frequency } \
\hline 0-2 & 4 \
3-5 & 6 \
6-8 & 9 \
9-11 & 3 \
12-14 & 1
\end{array}$

Accepted Answer

The answer of To obtain the frequency distribution below, twenty-three...

Quiz 12: Voting Methods

Find $Q _ { 1 } , Q _ { 2 }$ , and $Q _ { 3 }$ for the ages of nine students. $\begin{array} { l l l l l l l l l } 18 & 20 & 21 & 19 & 17 & 36 & 22 & 19 & 24 \end{array}$

$\begin{array}{l}\text { Draw a scatter plot and describe the relationship. }\\\begin{array} { l | c c c c c c c } x & 3 & 6 & 7 & 5 & 1 & 4 & 2 \\\hline y & 10 & 1 & 2 & 10 & 5 & 6 & 3\end{array}\end{array}$

For the 8 test scores shown, find the percentile rank of 68. 29 87 68 34 60 31 30 61

Fifty people participated in a poll to determine their favorite ice cream flavor. Use the data to construct a bar graph. $\begin{array}{l|c}\text { Flavor } & \text { Number } \\\hline \text { Chocolate } & 15 \\\text { Strawberry } & 8 \\\text { Vanilla } & 13 \\\text { Other } & 14\end{array}$

$\begin{array}{l}\text { Draw a scatter plot for the data shown. }\\\begin{array} { c | c c c c c c } x & 28 & 19 & 25 & 22 & 30 & 18 \\\hline y & 10 & 5 & 2 & 7 & 1 & 9\end{array}\end{array}$

$\begin{array}{l}\text { These data represent the grades on a college exam. Find the mean }\\\begin{array} { l | r } \text { Class limits } & \text { Frequency } \\\hline 50 - 59 & 5 \\60 - 69 & 8 \\70 - 79 & 19 \\80 - 89 & 16 \\90 - 99 & 10\end{array}\end{array}$

A small company did a poll of how their employees commuted to work. Use the data to draw a pie chart. $\begin{array}{l|c}\text { Method of commute } & \text { Number } \\\hline \text { Car } & 15 \\\text { Bus } & 11 \\\text { Train } & 8 \\\text { Bike } & 2 \\\text { Walk } & 4\end{array}$

$\begin{array}{l}\text { Draw a scatter plot and describe the relationship. }\\\begin{array} { c | c c c c c c } x & 10 & 8 & 7 & 12 & 14 & 5 \\\hline y & 20 & 19 & 17 & 25 & 28 & 9\end{array}\end{array}$

$\begin{array}{l}\text { Find the equation of the regression line and predict } y \text { when } x = 16 \text {. }\\\begin{array} { c | c c c c c } x & 2 & 4 & 3 & 5 & 1 \\\hline y & 12 & 19 & 16 & 19 & 8\end{array}\end{array}$

Find the median. 20 21 22 26 27 33 25

The average hourly wage of employees of a certain company is $13.74. Assume the variable is normally distributed. If the standard deviation is $4.25, find the probability that a randomly selected employee earns more than $20.54.

Find the range. 7 40 6 45 26 4 28 46

These data represent the number of stray cats in a small town for the years listed. Draw a time series graph for the data. $\begin{array}{c|cccccc}\text { Year } & 1998 & 1999 & 2000 & 2001 & 2002 & 2003 \\\hline \text { Number } & 29 & 38 & 51 & 42 & 45 & 56\end{array}$

These data represent the number of students enrolled at a community college. Draw a time series graph for the data. $\begin{array}{c|ccccccc}\text { Year } & 1985 & 1986 & 1987 & 1988 & 1989 & 1990 & 1991 \\\hline \text { Number } & 423 & 439 & 432 & 505 & 514 & 520 & 536\end{array}$

To obtain the frequency distribution below, twenty-three babies were monitored for how many times they cried during the night. Construct a histogram for the data. $\begin{array}{l|c}\text { Class } & \text { Frequency } \\\hline 0-2 & 4 \\3-5 & 6 \\6-8 & 9 \\9-11 & 3 \\12-14 & 1\end{array}$

Find the variance and standard deviation. 36) 16 6 14 50 6 46

Quiz 12: Voting Methods

Find Q1,Q2Q _ { 1 } , Q _ { 2 }Q1​,Q2​ , and Q3Q _ { 3 }Q3​ for the ages of nine students. 182021191736221924\begin{array} { l l l l l l l l l } 18 & 20 & 21 & 19 & 17 & 36 & 22 & 19 & 24 \end{array}18​20​21​19​17​36​22​19​24​

For the 8 test scores shown, find the percentile rank of 68. 29 87 68 34 60 31 30 61

Find the median. 20 21 22 26 27 33 25

The average hourly wage of employees of a certain company is $13.74. Assume the variable is normally distributed. If the standard deviation is $4.25, find the probability that a randomly selected employee earns more than $20.54.

Find the range. 7 40 6 45 26 4 28 46

Find the variance and standard deviation. 36) 16 6 14 50 6 46

Find $Q _ { 1 } , Q _ { 2 }$ , and $Q _ { 3 }$ for the ages of nine students. $\begin{array} { l l l l l l l l l } 18 & 20 & 21 & 19 & 17 & 36 & 22 & 19 & 24 \end{array}$