1 | Page
OSC 2030 CHP 1-4 BRAND NEW
ACTUAL EXAM WITH 100%
VERIFIED QUESTIONS AND
CORRECT SOLUTIONS
A scatter diagram can show whether a pair of variables has a
strong or weak relationship, and also whether it is linear or
curved.
True or False - ANSWER-True
A histogram is most commonly used to analyze which of the
following?
Time-series data
Ordinal data
Quantitative data
Nominal level data - ANSWER-Quantitative Data
A histogram can be constructed for data that are either
quantitative or qualitative.
,2 | Page
True or False - ANSWER-False
After developing a frequency distribution for a quantitative
variable, a histogram can be developed with the horizontal axis
representing the values of the variable and the vertical axis
representing the frequency of occurrence in each class or
group.
True or False - ANSWER-True
Histograms cannot have gaps between the bars, whereas bar
charts can have gaps.
True or False - ANSWER-True
A major insurance company believes that for drivers between
16 years of age and 60 years of age, the number of accidents
per year tends to decrease as age increases. If this is the case,
a scatter diagram should show a negative relationship between
the two variables.
True or False - ANSWER-True
,3 | Page
Bar charts can typically be formed with the bars vertical or
horizontal without adversely affecting the interpretation.
True or False - ANSWER-True
In a scatter plot the points should always be connected with a
line.
True or False - ANSWER-False
What is an example of a discrete random variable?
Number of customers coming into my bakery
Measuring how much something weighs
Timing a race on a stopwatch - ANSWER-Number of customers
coming into my bakery
To show how the price of a stock has changed over the last 3
months, the best type of chart to use is:
, 4 | Page
a histogram.
a line chart.
a bar chart.
a pie chart. - ANSWER-a line chart
The Malcolm Baldrige National Quality Award is used to raise
awareness of quality management and recognize international
companies that have implemented successful quality
management systems.
True or False - ANSWER-False
If a scatter diagram shows points that are reasonably aligned
and are sloping downward from left to right, this implies that
there is a negative linear relationship between the two
variables.
True or False - ANSWER-True
A common rule of thumb for determining how many classes to
use when developing a frequency distribution with classes is:
between 5 and 20 classes.
OSC 2030 CHP 1-4 BRAND NEW
ACTUAL EXAM WITH 100%
VERIFIED QUESTIONS AND
CORRECT SOLUTIONS
A scatter diagram can show whether a pair of variables has a
strong or weak relationship, and also whether it is linear or
curved.
True or False - ANSWER-True
A histogram is most commonly used to analyze which of the
following?
Time-series data
Ordinal data
Quantitative data
Nominal level data - ANSWER-Quantitative Data
A histogram can be constructed for data that are either
quantitative or qualitative.
,2 | Page
True or False - ANSWER-False
After developing a frequency distribution for a quantitative
variable, a histogram can be developed with the horizontal axis
representing the values of the variable and the vertical axis
representing the frequency of occurrence in each class or
group.
True or False - ANSWER-True
Histograms cannot have gaps between the bars, whereas bar
charts can have gaps.
True or False - ANSWER-True
A major insurance company believes that for drivers between
16 years of age and 60 years of age, the number of accidents
per year tends to decrease as age increases. If this is the case,
a scatter diagram should show a negative relationship between
the two variables.
True or False - ANSWER-True
,3 | Page
Bar charts can typically be formed with the bars vertical or
horizontal without adversely affecting the interpretation.
True or False - ANSWER-True
In a scatter plot the points should always be connected with a
line.
True or False - ANSWER-False
What is an example of a discrete random variable?
Number of customers coming into my bakery
Measuring how much something weighs
Timing a race on a stopwatch - ANSWER-Number of customers
coming into my bakery
To show how the price of a stock has changed over the last 3
months, the best type of chart to use is:
, 4 | Page
a histogram.
a line chart.
a bar chart.
a pie chart. - ANSWER-a line chart
The Malcolm Baldrige National Quality Award is used to raise
awareness of quality management and recognize international
companies that have implemented successful quality
management systems.
True or False - ANSWER-False
If a scatter diagram shows points that are reasonably aligned
and are sloping downward from left to right, this implies that
there is a negative linear relationship between the two
variables.
True or False - ANSWER-True
A common rule of thumb for determining how many classes to
use when developing a frequency distribution with classes is:
between 5 and 20 classes.
