Pre-Assessment: Applied Probability
and Statistics Exam 2025 With 100%
Correct Answers
A study was conducted to see if blood type influenced height. What type of classification is this?
- correct answers ✔✔categorical to quantitative
A study was conducted on the possible relationship between smoking status and whether or
not alcohol is consumed. What type of classification is this? - correct answers ✔✔categorical to
categorical
A study is conducted on the possible relationship between gender and income of employees at
a marketing company. Which numerical measure is appropriate for this study? - correct answers
✔✔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? - correct answers ✔✔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? -
correct answers ✔✔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:
ProductA : ProductB: Total
north 25 18 43
central 35 31 66
, south 22 27 49
total 82 76 158
Which percentage of respondents from the Northern region prefer Product A to Product B?
What is the math? - correct answers ✔✔25/43 x 100 = 58%
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:
ProductA : ProductB: Total
north 25 18 43
central 35 31 66
south 22 27 49
total 82 76 158
Which percentage of respondents from the Northern region prefer Product A to Product B? -
correct answers ✔✔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 & above 45% 55% 100%
39 & below 63% 37% 100%
total 54% 46% 100%
and Statistics Exam 2025 With 100%
Correct Answers
A study was conducted to see if blood type influenced height. What type of classification is this?
- correct answers ✔✔categorical to quantitative
A study was conducted on the possible relationship between smoking status and whether or
not alcohol is consumed. What type of classification is this? - correct answers ✔✔categorical to
categorical
A study is conducted on the possible relationship between gender and income of employees at
a marketing company. Which numerical measure is appropriate for this study? - correct answers
✔✔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? - correct answers ✔✔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? -
correct answers ✔✔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:
ProductA : ProductB: Total
north 25 18 43
central 35 31 66
, south 22 27 49
total 82 76 158
Which percentage of respondents from the Northern region prefer Product A to Product B?
What is the math? - correct answers ✔✔25/43 x 100 = 58%
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:
ProductA : ProductB: Total
north 25 18 43
central 35 31 66
south 22 27 49
total 82 76 158
Which percentage of respondents from the Northern region prefer Product A to Product B? -
correct answers ✔✔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 & above 45% 55% 100%
39 & below 63% 37% 100%
total 54% 46% 100%
