WGU C955 Pre-Assessment Exam | Applied
Probability And Statistics Exam| Correctly
Answered And Graded A+
A study was conducted to see if blood type influenced height.
Which type of classification is this?
A) Categorical to categorical
B) Categorical to quantitative
C) Quantitative to quantitative
D) Quantitative to categorical - Correct Answer - Categorical to
quantitative
A study was conducted on the possible relationship between
smoking status and whether or not alcohol is consumed.
Which type of classification is this?
A) Categorical to categorical
B) Quantitative to categorical
C) Categorical to quantitative
D) Quantitative to quantitative - Correct Answer - Categorical to
categorical
,A study is conducted on the possible relationship between gender
and income of the employees at a marketing company.
Which numerical measure is appropriate for this study?
A) Standard deviation
B) Five-number summary
C) Conditional percentages
D) Correlation coefficient - Correct Answer - Five-number
summary
A researcher is examining the relationship between the number of
hours of sleep and score on a cognitive test.
Which method should be used to measure the linear relationship
between these two variables?
A) Correlation
B) Proportion
C) Quartile
D) Standard deviation - Correct Answer - Correlation
,A study is conducted on the possible relationship between the
number of new car purchases and national unemployment rates.
Which numerical measure is appropriate for this situation?
A) Standard deviation
B) Five-number summary
C) Correlation coefficient
D) Conditional percentages - Correct Answer - Correlation
coefficient
In a simple marketing survey, consumers in three parts of a state
are asked for their preference between Product A and Product B.
Survey results are reported in the two-way table below:
..........Product A..Product B..Total
Northern..25.........18.........43
Central...35.........31.........66
Southern..22.........27.........49
Total.....82.........76.........158
Which percentage of respondents from the Northern region prefer
Product A to Product B?
, A) 16%
B) 30%
C) 52%
D) 58% - Correct Answer - 58%
A researcher is interested in determining purchasing preferences
based on age. The researcher randomly samples people in two
age groups and asks how they prefer to shop. Conditional
percentages are used to summarize the responses in the table
below:
Purchasing Preferences
..............Online..In-Store..Total
40 and above..45%.....55%.......100%
39 and below..63%.....37%.......100%
Total.........54%.....46%.......100%
Based on this information, what is the relationship between age
and shopping preference?
A) People aged 40 and above prefer shopping in-store more than
people aged 39 and below because 55% is greater than 45%.
Probability And Statistics Exam| Correctly
Answered And Graded A+
A study was conducted to see if blood type influenced height.
Which type of classification is this?
A) Categorical to categorical
B) Categorical to quantitative
C) Quantitative to quantitative
D) Quantitative to categorical - Correct Answer - Categorical to
quantitative
A study was conducted on the possible relationship between
smoking status and whether or not alcohol is consumed.
Which type of classification is this?
A) Categorical to categorical
B) Quantitative to categorical
C) Categorical to quantitative
D) Quantitative to quantitative - Correct Answer - Categorical to
categorical
,A study is conducted on the possible relationship between gender
and income of the employees at a marketing company.
Which numerical measure is appropriate for this study?
A) Standard deviation
B) Five-number summary
C) Conditional percentages
D) Correlation coefficient - Correct Answer - Five-number
summary
A researcher is examining the relationship between the number of
hours of sleep and score on a cognitive test.
Which method should be used to measure the linear relationship
between these two variables?
A) Correlation
B) Proportion
C) Quartile
D) Standard deviation - Correct Answer - Correlation
,A study is conducted on the possible relationship between the
number of new car purchases and national unemployment rates.
Which numerical measure is appropriate for this situation?
A) Standard deviation
B) Five-number summary
C) Correlation coefficient
D) Conditional percentages - Correct Answer - Correlation
coefficient
In a simple marketing survey, consumers in three parts of a state
are asked for their preference between Product A and Product B.
Survey results are reported in the two-way table below:
..........Product A..Product B..Total
Northern..25.........18.........43
Central...35.........31.........66
Southern..22.........27.........49
Total.....82.........76.........158
Which percentage of respondents from the Northern region prefer
Product A to Product B?
, A) 16%
B) 30%
C) 52%
D) 58% - Correct Answer - 58%
A researcher is interested in determining purchasing preferences
based on age. The researcher randomly samples people in two
age groups and asks how they prefer to shop. Conditional
percentages are used to summarize the responses in the table
below:
Purchasing Preferences
..............Online..In-Store..Total
40 and above..45%.....55%.......100%
39 and below..63%.....37%.......100%
Total.........54%.....46%.......100%
Based on this information, what is the relationship between age
and shopping preference?
A) People aged 40 and above prefer shopping in-store more than
people aged 39 and below because 55% is greater than 45%.
