C955 Probability and Statistics review Question and
answers already passed 2025
1. A researcher wants to examine the average 6. A side-by-
annual income per county in Kentucky to side box
determine if there is a relationship with the plot is an
number of playgrounds in those counties. effective
Which graphical display is appropriate? method of
dis- playing
2. A researcher is studying the relationship which of the
between hours studied and test scores for a following
group of 50 stu- dents. Which numerical variable
measure(s) would be most ap- propriate for classification
summarizing this relationship? s?
3. A researcher is studying the relationship 7. A teacher
between hours spent exercising per week wants to
and weight (in pounds). What type of graphical study the
display would be most appropriate for this relationsh
study? ip
between
4. A company is analyzing the monthly sales
students'
perfor- mance, in total dollars sold, of employees
test
across differ- ent departments. Which numerical
scores and
measure would be most appropriate for
the
summarizing the distribution of sales
number of
performance within each of the
hours they
departments?
5. A study is investigating the relationship
between the number of weekly exercise
sessions and resting heart rate among adults.
Which numerical measure would be most
appropriate for summarizing this relation-
ship?
1/
5
, C955 Probability and Statistics review Question and
answers already passed 2025
Scatterplot
Correlation coeflcient
A scatterplot
Five-number summary
Correlation coeflcient
Categorical ’Quantitative
Scatterplot
2/
5
answers already passed 2025
1. A researcher wants to examine the average 6. A side-by-
annual income per county in Kentucky to side box
determine if there is a relationship with the plot is an
number of playgrounds in those counties. effective
Which graphical display is appropriate? method of
dis- playing
2. A researcher is studying the relationship which of the
between hours studied and test scores for a following
group of 50 stu- dents. Which numerical variable
measure(s) would be most ap- propriate for classification
summarizing this relationship? s?
3. A researcher is studying the relationship 7. A teacher
between hours spent exercising per week wants to
and weight (in pounds). What type of graphical study the
display would be most appropriate for this relationsh
study? ip
between
4. A company is analyzing the monthly sales
students'
perfor- mance, in total dollars sold, of employees
test
across differ- ent departments. Which numerical
scores and
measure would be most appropriate for
the
summarizing the distribution of sales
number of
performance within each of the
hours they
departments?
5. A study is investigating the relationship
between the number of weekly exercise
sessions and resting heart rate among adults.
Which numerical measure would be most
appropriate for summarizing this relation-
ship?
1/
5
, C955 Probability and Statistics review Question and
answers already passed 2025
Scatterplot
Correlation coeflcient
A scatterplot
Five-number summary
Correlation coeflcient
Categorical ’Quantitative
Scatterplot
2/
5
