A Quantitative Reasoning Approach 7th Edition Exam Paper
Questions with Correct Answers (Grade A+)
Question 1: A bar graph would be most appropriate because the goal is to compare the numbers of
visitors that go to the attractions. A bar graph could do this because it uses a set of bars to represent
the frequency of each category
Answer: You have a table listing ten tourist attractions and their
annual numbers of visitors. Which type of display would be most
appropriate for these data? Explain your reasoning.
Question 2: Give an example of qualitative data. Explain your reasoning
Answer: An example is ratings of restaurants because they would be
based on subjective opinions.
Question 3: What is a histogram?
Answer: It is a bar graph for quantitative data.
Question 4: Decide whether the following statements makes sense (or is clearly true) or does not make
sense (or is clearly false). Explain your reasoning. I made a frequency table with two columns, one
labeled "State" and one labeled "State Capitol."
Answer: The statement does not make sense. In a frequency table,
one of the columns lists the frequency of each category, which is the
number of data values in the category. The table described in the
given statement does not have this column.
Question 5: Decide whether the following statements makes sense (or is clearly true) or does not make
sense (or is clearly false). Explain your reasoning. The relative frequency of B grades in our class was
0.3
Answer: The statement makes sense. Suppose there were 20 people
in the class. If 6 received Bs, then the relative frequency of B grades
was StartFraction 6 Over 20 EndFraction
equals0.3.
Question 6: Decide whether the following statement makes sense (or is clearly true) or does not make
sense (or is clearly false). Explain your reasoning. The cumulative frequency of C grades in our class of
31 students was 50
Answer: The statement does not make sense because the frequency
cannot be greater than the total.
Page 1
, Question 7: Decide whether the following statement makes sense (or is clearly true) or does not make
sense (or is clearly false). Explain your reasoning. Your pie chart must be wrong, because when I
added the percentages on your wedges, they totaled 124%
Answer: The statement makes sense because pie charts are used
primarily for relative frequencies, so the total pie must always
represent the total relative frequency of 100%.
Question 8: Determine whether the following variable is qualitative or quantitative, and explain why.
Home prices in a small town
Answer: The variable is quantitative because price is a numerical
category.
Question 9: Determine whether the following variable is qualitative or quantitative, and explain why.
Daily snowfall (in inches) during January in Syracuse, New York
Answer: The variable is quantitative because inches are
measurements.
Question 10: Determine whether the following variable is qualitative or quantitative, and explain why.
The flavors of ice cream sold at a delicatessen
Answer: The variable is qualitative because flavors are
nonnumerical categories.
Question 11: Use 4-point bins (96 to 99, 92 to 95, etc.) to make a frequency table for the set of exam
scores shown below. Include columns for relative frequency and cumulative frequency. 77 89 81 91 86
81 78 91 89 93 99 84 82 99 91 97 79 93 78 85
Answer: https://cdn.discordapp.com/attachments/525105665308491778/
624305508911677471/Screen_Shot_2019-09-
19_at_11.05.01_AM.png
Complete the frequency table below.
Scores
Frequency
Relative Frequency
Cumulative Frequency
96 to 99
3
15%
3
92 to 95
2
10%
88 to 91
Page 2
Questions with Correct Answers (Grade A+)
Question 1: A bar graph would be most appropriate because the goal is to compare the numbers of
visitors that go to the attractions. A bar graph could do this because it uses a set of bars to represent
the frequency of each category
Answer: You have a table listing ten tourist attractions and their
annual numbers of visitors. Which type of display would be most
appropriate for these data? Explain your reasoning.
Question 2: Give an example of qualitative data. Explain your reasoning
Answer: An example is ratings of restaurants because they would be
based on subjective opinions.
Question 3: What is a histogram?
Answer: It is a bar graph for quantitative data.
Question 4: Decide whether the following statements makes sense (or is clearly true) or does not make
sense (or is clearly false). Explain your reasoning. I made a frequency table with two columns, one
labeled "State" and one labeled "State Capitol."
Answer: The statement does not make sense. In a frequency table,
one of the columns lists the frequency of each category, which is the
number of data values in the category. The table described in the
given statement does not have this column.
Question 5: Decide whether the following statements makes sense (or is clearly true) or does not make
sense (or is clearly false). Explain your reasoning. The relative frequency of B grades in our class was
0.3
Answer: The statement makes sense. Suppose there were 20 people
in the class. If 6 received Bs, then the relative frequency of B grades
was StartFraction 6 Over 20 EndFraction
equals0.3.
Question 6: Decide whether the following statement makes sense (or is clearly true) or does not make
sense (or is clearly false). Explain your reasoning. The cumulative frequency of C grades in our class of
31 students was 50
Answer: The statement does not make sense because the frequency
cannot be greater than the total.
Page 1
, Question 7: Decide whether the following statement makes sense (or is clearly true) or does not make
sense (or is clearly false). Explain your reasoning. Your pie chart must be wrong, because when I
added the percentages on your wedges, they totaled 124%
Answer: The statement makes sense because pie charts are used
primarily for relative frequencies, so the total pie must always
represent the total relative frequency of 100%.
Question 8: Determine whether the following variable is qualitative or quantitative, and explain why.
Home prices in a small town
Answer: The variable is quantitative because price is a numerical
category.
Question 9: Determine whether the following variable is qualitative or quantitative, and explain why.
Daily snowfall (in inches) during January in Syracuse, New York
Answer: The variable is quantitative because inches are
measurements.
Question 10: Determine whether the following variable is qualitative or quantitative, and explain why.
The flavors of ice cream sold at a delicatessen
Answer: The variable is qualitative because flavors are
nonnumerical categories.
Question 11: Use 4-point bins (96 to 99, 92 to 95, etc.) to make a frequency table for the set of exam
scores shown below. Include columns for relative frequency and cumulative frequency. 77 89 81 91 86
81 78 91 89 93 99 84 82 99 91 97 79 93 78 85
Answer: https://cdn.discordapp.com/attachments/525105665308491778/
624305508911677471/Screen_Shot_2019-09-
19_at_11.05.01_AM.png
Complete the frequency table below.
Scores
Frequency
Relative Frequency
Cumulative Frequency
96 to 99
3
15%
3
92 to 95
2
10%
88 to 91
Page 2
