Question 1

Refer to the following distribution of commissions:  
-What is the class interval for the table of wages above?

Accepted Answer

A)  $2 
B)  $3 
C)  $4 
D)  $5 
E)  None of the choices are correct 
A)  $2 
B)  $3 
C)  $4 
D)  $5 
E)  None of the choices are correct

Question 2

When a class interval is expressed as: 100 to under 200,

Accepted Answer

A)  Observations with values of 100 are excluded from the class frequency. 
B)  Observations with values of 200 are included in the class frequency. 
C)  Observations with values of 200 are excluded from the class frequency. 
D)  The class interval is 99. 
A)  Observations with values of 100 are excluded from the class frequency. 
B)  Observations with values of 200 are included in the class frequency. 
C)  Observations with values of 200 are excluded from the class frequency. 
D)  The class interval is 99.

Question 3

The following represent the ages of students in a class:
 19, 23, 21, 19, 19, 20, 22, 31, 21, 20
If a stem and leaf plot were to be developed from this, how many leaves would there be off the second stem?

Accepted Answer

A)  11 
B)  2 
C)  3 
D)  4 
E)  6 
A)  11 
B)  2 
C)  3 
D)  4 
E)  6

Question 4

Consider the following relative frequency distribution:   If there are 2,000 numbers in the data set, how many of the values are less than 30?

Accepted Answer

A)  900 
B)  90 
C)  1,000 
D)  100 
E)  None of the choices are correct 
A)  900 
B)  90 
C)  1,000 
D)  100 
E)  None of the choices are correct

Question 5

-What type of graph is this?

Accepted Answer

A)  line chart 
B)  multiple line chart 
C)  bar chart 
D)  stacked bar chart 
E)  cumulative frequency polygon 
A)  line chart 
B)  multiple line chart 
C)  bar chart 
D)  stacked bar chart 
E)  cumulative frequency polygon

Question 6

Refer to the following ages (rounded to the nearest whole year) of employees at a large company that were grouped into a distribution with class limits:
20 up to 30
30 up to 40
40 up to 50
50 up to 60
60 up to 70.
-The midpoint for the class 40 up to 50 is _______.

Accepted Answer

The answer of Refer to the following ages (rounded to...

Question 7

Refer to the following distribution of commissions:  
-What is the class midpoint for the class with the greatest frequency?

Accepted Answer

A)  $5.50 
B)  $8.50 
C)  $11.50 
D)  $14.50 
E)  None of the choices are correct 
A)  $5.50 
B)  $8.50 
C)  $11.50 
D)  $14.50 
E)  None of the choices are correct

Question 8

The chart below can be best described as

Accepted Answer

A)  Line chart 
B)  Bar chart 
C)  Pie chart 
D)  Stacked bar chart 
E)  Cumulative stacked bar chart 
A)  Line chart 
B)  Bar chart 
C)  Pie chart 
D)  Stacked bar chart 
E)  Cumulative stacked bar chart

Question 9

If the enrolment for this Faculty of Business remained constant at 625 between 2000 and 2001, determine the change in the enrolment in the School of Accounting during this time.

Accepted Answer

A)  increase of 19 students 
B)  decrease of 19 students 
C)  increase of 75 students 
D)  decrease of 75 students 
E)  decrease of 25 students 
A)  increase of 19 students 
B)  decrease of 19 students 
C)  increase of 75 students 
D)  decrease of 75 students 
E)  decrease of 25 students

Question 10

(i) A frequency table is a grouping of qualitative data into mutually exclusive classes showing the number of observations in each class. (ii) Simple bar charts may be constructed either horizontally or vertically.
(iii) A relative frequency table shows the fraction or percent of the number of observations in each class.

Accepted Answer

A)  (i), (ii) and (iii) are all correct statements. 
B)  (i) and, (ii) are correct statements but not (iii). 
C)  (i) and, (iii) are correct statements but not (ii). 
D)  (ii) and, (iii) are correct statements but not (i). 
E)  All statements are false. 
A)  (i), (ii) and (iii) are all correct statements. 
B)  (i) and, (ii) are correct statements but not (iii). 
C)  (i) and, (iii) are correct statements but not (ii). 
D)  (ii) and, (iii) are correct statements but not (i). 
E)  All statements are false.

Question 11

(i) Pie charts are useful for showing the percent that various components compose of the total. (ii) Simple bar charts may be constructed either horizontally or vertically. (iii) A line chart is ideal for showing the trend or sales of income over time.

Accepted Answer

A)  (i), (ii) and (iii) are all correct statements. 
B)  (i) and, (ii) are correct statements but not (iii). 
C)  (i) and, (iii) are correct statements but not (ii). 
D)  (ii) and, (iii) are correct statements but not (i). 
E)  All statements are false. 
A)  (i), (ii) and (iii) are all correct statements. 
B)  (i) and, (ii) are correct statements but not (iii). 
C)  (i) and, (iii) are correct statements but not (ii). 
D)  (ii) and, (iii) are correct statements but not (i). 
E)  All statements are false.

Question 12

The chart below can be best described as

Accepted Answer

A)  Line chart 
B)  Bar chart 
C)  Pie chart 
D)  Stacked bar chart 
E)  Cumulative stacked bar chart 
A)  Line chart 
B)  Bar chart 
C)  Pie chart 
D)  Stacked bar chart 
E)  Cumulative stacked bar chart

Question 13

-Province wide, approximately what proportion of students is over the age of 31?

Accepted Answer

A)  10% 
B)  20% 
C)  40% 
D)  50% 
E)  90% 
A)  10% 
B)  20% 
C)  40% 
D)  50% 
E)  90%

Question 14

Refer to the following distribution of commissions:  
-What is the relative frequency of those salespersons that earn more than $1,599?

Accepted Answer

A)  25.5% 
B)  27.5% 
C)  29.5% 
D)  30.8% 
E)  None of the choices are correct 
A)  25.5% 
B)  27.5% 
C)  29.5% 
D)  30.8% 
E)  None of the choices are correct

Question 15

Analyze the graph below. Do you find any inconsistencies or errors?

Accepted Answer

A)  You shouldn't have 6 bars all on a single graph 
B)  Students under 21 don't go to college 
C)  This graph suggests there are the same number of students in the entire province as in each of the other groups shown 
D)  The classes are not all mutually exclusive 
E)  You can't have open ended classes in a bar chart 
A)  You shouldn't have 6 bars all on a single graph 
B)  Students under 21 don't go to college 
C)  This graph suggests there are the same number of students in the entire province as in each of the other groups shown 
D)  The classes are not all mutually exclusive 
E)  You can't have open ended classes in a bar chart

Question 16

If you are constructing a stem-and-leaf display, the "20" in 20.5 would be the ______.

Accepted Answer

The answer of If you are constructing a stem-and-leaf display,...

Question 17

Refer to the following cumulative frequency distribution on days absent during a calendar year by employees of a manufacturing company:  
-How many employees were absent from 6 to under 12 days?

Accepted Answer

A)  20 
B)  8 
C)  12 
D)  17 
E)  None of the choices are correct 
A)  20 
B)  8 
C)  12 
D)  17 
E)  None of the choices are correct

Question 18

(i). The stem in a stem-and-leaf display is the leading digit
(ii) There is no loss of information when raw data is tallied into a stem-and-leaf display.
(iii). For a stem-and-leaf display, the leaf for the value 98 is 9

Accepted Answer

A)  (i), (ii) and (iii) are all correct statements. 
B)  (i) and, (ii) are correct statements but not (iii). 
C)  (i) and, (iii) are correct statements but not (ii). 
D)  (ii) and (iii) are correct statements but not (i). 
E)  All statements are false. 
A)  (i), (ii) and (iii) are all correct statements. 
B)  (i) and, (ii) are correct statements but not (iii). 
C)  (i) and, (iii) are correct statements but not (ii). 
D)  (ii) and (iii) are correct statements but not (i). 
E)  All statements are false.

Question 19

Refer to the following price of jeans are recorded to the nearest dollar: The first two class midpoints are $62.50 and $65.50. What are the class limits for the lowest class?

Accepted Answer

A)  $61 and up to $64 
B)  $62 and up to $64 
C)  $62 and $65 
D)  $62 and $63 
E)  None of the choices are correct 
A)  $61 and up to $64 
B)  $62 and up to $64 
C)  $62 and $65 
D)  $62 and $63 
E)  None of the choices are correct

Question 20

The chart below shows the Gross Domestic Product for 7 nations. Which of the following statements can be determined from this chart?

Accepted Answer

A)  The GDP of the USA is approximately twice the size of each of the other countries. 
B)  Germany's GDP is approximately half of that of Italy. 
C)  Germany's GDP is approximately twice of that of Canada. 
D)  The GDP of Japan is approximately $4 trillion. 
A)  The GDP of the USA is approximately twice the size of each of the other countries. 
B)  Germany's GDP is approximately half of that of Italy. 
C)  Germany's GDP is approximately twice of that of Canada. 
D)  The GDP of Japan is approximately $4 trillion.

Refer to the following distribution of commissions: -What is the class interval for the table of wages above?

When a class interval is expressed as: 100 to under 200,

The following represent the ages of students in a class: 19, 23, 21, 19, 19, 20, 22, 31, 21, 20 If a stem and leaf plot were to be developed from this, how many leaves would there be off the second stem?

Consider the following relative frequency distribution: If there are 2,000 numbers in the data set, how many of the values are less than 30?

-What type of graph is this?

Refer to the following ages (rounded to the nearest whole year) of employees at a large company that were grouped into a distribution with class limits: 20 up to 30 30 up to 40 40 up to 50 50 up to 60 60 up to 70. -The midpoint for the class 40 up to 50 is _______.

Refer to the following distribution of commissions: -What is the class midpoint for the class with the greatest frequency?

The chart below can be best described as

If the enrolment for this Faculty of Business remained constant at 625 between 2000 and 2001, determine the change in the enrolment in the School of Accounting during this time.

(i) Pie charts are useful for showing the percent that various components compose of the total. (ii) Simple bar charts may be constructed either horizontally or vertically. (iii) A line chart is ideal for showing the trend or sales of income over time.

The chart below can be best described as

-Province wide, approximately what proportion of students is over the age of 31?

Refer to the following distribution of commissions: -What is the relative frequency of those salespersons that earn more than $1,599?

Analyze the graph below. Do you find any inconsistencies or errors?

If you are constructing a stem-and-leaf display, the "20" in 20.5 would be the ______.

Refer to the following cumulative frequency distribution on days absent during a calendar year by employees of a manufacturing company: -How many employees were absent from 6 to under 12 days?

(i). The stem in a stem-and-leaf display is the leading digit (ii) There is no loss of information when raw data is tallied into a stem-and-leaf display. (iii). For a stem-and-leaf display, the leaf for the value 98 is 9

Refer to the following price of jeans are recorded to the nearest dollar: The first two class midpoints are $62.50 and $65.50. What are the class limits for the lowest class?

The chart below shows the Gross Domestic Product for 7 nations. Which of the following statements can be determined from this chart?

What Is Statistics

Describing Data: Numerical Measures

A Survey of Probability Concepts

Discrete Probability Distributions

The Normal Probability Distribution

Sampling Methods and the Central Limit Theorem

Estimation and Confidence Intervals

One-Sample Tests of a Hypothesis

Two-Sample Tests of Hypothesis

Analysis of Variance

Linear Regression and Correlation

Multiple Regression and Correlation Analysis

Chi-Square Applications for Nominal Data

Index Numbers

Time Series and Forecasting

An Introduction to Decision Theory

Filters

Exam 2: Describing Data: Frequency Distributions and Graphic Presentation

Refer to the following distribution of commissions: -What is the class interval for the table of wages above?

When a class interval is expressed as: 100 to under 200,

The following represent the ages of students in a class: 19, 23, 21, 19, 19, 20, 22, 31, 21, 20 If a stem and leaf plot were to be developed from this, how many leaves would there be off the second stem?

Consider the following relative frequency distribution: If there are 2,000 numbers in the data set, how many of the values are less than 30?

-What type of graph is this?

Refer to the following ages (rounded to the nearest whole year) of employees at a large company that were grouped into a distribution with class limits: 20 up to 30 30 up to 40 40 up to 50 50 up to 60 60 up to 70. -The midpoint for the class 40 up to 50 is _______.

Refer to the following distribution of commissions: -What is the class midpoint for the class with the greatest frequency?

The chart below can be best described as

If the enrolment for this Faculty of Business remained constant at 625 between 2000 and 2001, determine the change in the enrolment in the School of Accounting during this time.

(i) Pie charts are useful for showing the percent that various components compose of the total. (ii) Simple bar charts may be constructed either horizontally or vertically. (iii) A line chart is ideal for showing the trend or sales of income over time.

The chart below can be best described as

-Province wide, approximately what proportion of students is over the age of 31?

Refer to the following distribution of commissions: -What is the relative frequency of those salespersons that earn more than $1,599?

Analyze the graph below. Do you find any inconsistencies or errors?

If you are constructing a stem-and-leaf display, the "20" in 20.5 would be the ______.

Refer to the following cumulative frequency distribution on days absent during a calendar year by employees of a manufacturing company: -How many employees were absent from 6 to under 12 days?

(i). The stem in a stem-and-leaf display is the leading digit (ii) There is no loss of information when raw data is tallied into a stem-and-leaf display. (iii). For a stem-and-leaf display, the leaf for the value 98 is 9

Refer to the following price of jeans are recorded to the nearest dollar: The first two class midpoints are $62.50 and $65.50. What are the class limits for the lowest class?

The chart below shows the Gross Domestic Product for 7 nations. Which of the following statements can be determined from this chart?

What Is Statistics

Describing Data: Numerical Measures

A Survey of Probability Concepts

Discrete Probability Distributions

The Normal Probability Distribution

Sampling Methods and the Central Limit Theorem

Estimation and Confidence Intervals

One-Sample Tests of a Hypothesis

Two-Sample Tests of Hypothesis

Analysis of Variance

Linear Regression and Correlation

Multiple Regression and Correlation Analysis

Chi-Square Applications for Nominal Data

Index Numbers

Time Series and Forecasting

An Introduction to Decision Theory

Filters