STATS PRACTICE EXAM 1 QUESTIONS
AND VERIFIED ANSWERS|100%
CORRECT|GRADE A+
An internationally recognized
actuarial program also tracks the GPA of the actuarial students and compares performance in the
program to earnings after graduating over a seven-year
period.
Who was Measured?
What was measured?
When were the measurements taken?
Where were the measurements taken?
Why were the measurements taken?
How were the measurements taken?
Categorical Variables?
Quantitative Variables?
Designed survey or experiment?
Time series or cross-sectional?
Any concerns? - ANSWER 1. The actuarial Students
2. Earnings after graduating; GPA
3. Over the seven-year period
4. The location of the internationally recognized actuarial program
5. To assess the association between GPA and earnings after graduating
6. This information is not given
7. There are no categorical variables
8. Earnings after graduating; GPA
9.This information cannot be determined
10. Cross sectional
, 11. No specific concerns
Below are summary statistics for the sizes (in acres) of some local vineyards. Using the summary
statistics, complete parts a) through c) below.
a)From the summary statistics, would you describe this distribution as symmetric or skewed? Explain.
Choose the correct answer below.
b)From the summary statistics, are there any outliers? Explain. Choose the correct answer below.
c)Create a boxplot of these data. What additional information would you need to complete the boxplot?
Using the given values, draw as much of the boxplot as possible. Choose the correct plot below.
d)What additional information would you need to complete the boxplot? Select all that apply. - ANSWER
a) This distraction is skewed, because the mean and median are not reasonably close to one another
b) yes, because the maximum value is far greater than the upper fence
c) A. No upper fence w/ outlier
d) The target value inside the fence is needed in order to plot how far the high whisker should go ; the
value of any outliers that are above the top fence and below the max value are needed
Histogram table
a) What is the shape of the data?
b)What is the center of the data?
c) What is the spread of the data?
AND VERIFIED ANSWERS|100%
CORRECT|GRADE A+
An internationally recognized
actuarial program also tracks the GPA of the actuarial students and compares performance in the
program to earnings after graduating over a seven-year
period.
Who was Measured?
What was measured?
When were the measurements taken?
Where were the measurements taken?
Why were the measurements taken?
How were the measurements taken?
Categorical Variables?
Quantitative Variables?
Designed survey or experiment?
Time series or cross-sectional?
Any concerns? - ANSWER 1. The actuarial Students
2. Earnings after graduating; GPA
3. Over the seven-year period
4. The location of the internationally recognized actuarial program
5. To assess the association between GPA and earnings after graduating
6. This information is not given
7. There are no categorical variables
8. Earnings after graduating; GPA
9.This information cannot be determined
10. Cross sectional
, 11. No specific concerns
Below are summary statistics for the sizes (in acres) of some local vineyards. Using the summary
statistics, complete parts a) through c) below.
a)From the summary statistics, would you describe this distribution as symmetric or skewed? Explain.
Choose the correct answer below.
b)From the summary statistics, are there any outliers? Explain. Choose the correct answer below.
c)Create a boxplot of these data. What additional information would you need to complete the boxplot?
Using the given values, draw as much of the boxplot as possible. Choose the correct plot below.
d)What additional information would you need to complete the boxplot? Select all that apply. - ANSWER
a) This distraction is skewed, because the mean and median are not reasonably close to one another
b) yes, because the maximum value is far greater than the upper fence
c) A. No upper fence w/ outlier
d) The target value inside the fence is needed in order to plot how far the high whisker should go ; the
value of any outliers that are above the top fence and below the max value are needed
Histogram table
a) What is the shape of the data?
b)What is the center of the data?
c) What is the spread of the data?
