Podcast
Questions and Answers
Below are some of the variables from a survey conducted by the Canada Post. Which of these variables is categorical?
Below are some of the variables from a survey conducted by the Canada Post. Which of these variables is categorical?
- Zip Code (correct)
- Household income
- Age of respondent
- Number of persons in household
- All of the above
What is the median of the following sample data:
10, 35, 5, 10, 55, 30
What is the median of the following sample data: 10, 35, 5, 10, 55, 30
- 20
- 25
- 35
- 15 (correct)
- 30
Which of the following samples has the smallest standard deviation?
Which of the following samples has the smallest standard deviation?
- They are all the same
- 101, 102, 103, 104, 105
- 11, 12, 13, 14, 15 and 1, 2, 3, 4, 5
- 1, 2, 3, 4, 5 (correct)
- 11, 12, 13, 14, 15
You must use the scantron sheet at the end of the test to complete the MCQs. You may separate the scantron from the rest of the test.
Which of these variables is categorical?
You must use the scantron sheet at the end of the test to complete the MCQs. You may separate the scantron from the rest of the test. Which of these variables is categorical?
(20 pts) Consider the scores of an Econ/Mgt math class, which follow an approximately normal distribution, N(70, 10). Round your final answers to two decimal places.
What score is required to be in the top 10% of students who take this exam?
(20 pts) Consider the scores of an Econ/Mgt math class, which follow an approximately normal distribution, N(70, 10). Round your final answers to two decimal places. What score is required to be in the top 10% of students who take this exam?
(20 pts) Consider the scores of an Econ/Mgt math class, which follow an approximately normal distribution, N(70, 10). Round your final answers to two decimal places.
What score is required to fall between the top 10% and top 25% of students?
(20 pts) Consider the scores of an Econ/Mgt math class, which follow an approximately normal distribution, N(70, 10). Round your final answers to two decimal places. What score is required to fall between the top 10% and top 25% of students?
Flashcards
Categorical Variable
Categorical Variable
A variable whose values can be placed into categories, such as "yes" or "no", or "male" or "female".
Median
Median
The middle value in a dataset when arranged in order from least to greatest.
Standard Deviation
Standard Deviation
A measure of how spread out the data points are from the mean. A lower standard deviation indicates the data is more clustered around the mean.
Normal Distribution
Normal Distribution
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Z-Score
Z-Score
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Conditional Probability
Conditional Probability
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Correlation Coefficient (R)
Correlation Coefficient (R)
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Coefficient of Determination (R Squared)
Coefficient of Determination (R Squared)
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Dependent Variable
Dependent Variable
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Independent Variable
Independent Variable
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Least-Squares Regression Line
Least-Squares Regression Line
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Study Notes
Multiple Choice Questions
- Use the scantron sheet for multiple choice questions (MCQs).
- You can detach the scantron from the rest of the test.
Question 1
- Identify the categorical variable from a survey conducted by Canada Post.
- The correct answer is Zip Code.
Question 2
- Find the median of the sample data: 10, 35, 5, 10, 55, 30.
- The median is 20 (after sorting).
Question 3
- Determine which sample has the smallest standard deviation.
- The correct answer depends on the calculation for each sample.
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Description
This quiz covers important concepts in statistics, including categorical variables, median calculations, and standard deviation. You'll also analyze normally distributed data related to an Economics/Management math class. Prepare to test your understanding of statistical measures and distributions!
