Course Name:- Statistics 101
Module 1:- Welcome to statistics
Question 1. Which one of the following is not an example of statistics?
- The sweet smell of success
- Monthly housing prices in a city
- Traffic noise at a busy intersection
- Annual unemployment rate in a country
Question 2.Which of the following statements is true? One can estimate the votes for a presidential candidate in a forthcoming election by:
- Asking your barber
- Conducting a poll of a random sample of the voting age population
- Asking your favourite university professor about who is going to win
- Asking the cab drivers in a city of their vote preference
Question 3.Which of the following is not a type of data visualization? (Pick the most appropriate answer)
- An organization chart
- A pie chart
- A time series plot
- A bar chart
Module 2:-Descriptive statistics
Question 1. Which of the following is not a cross-sectional data set?
- Monthly survey of consumer confidence
- National Census conducted every 5 or 10 years
- Weekly data on average temperature
- A survey of student satisfaction conducted at the end of the course
Question 2.Which of the following is an example of time series data?
- Number of dolphins in the Pacific Ocean
- Average batting average of a baseball player
- Number of trees in Jardin du Luxemburg in Paris
- Annual average housing price in New Yorku
Question 3.Which of the following is an example of multivariate data?
- Vital signs recorded for a new born baby
- Number of songs played in a day by your favourite radio station
- Daily temperature recorded by a monitoring station in Antarctica
- Number of words spoken by President Donald Trump in his inaugural speech
Module 3 :- Advance Descriptive statistics
Question 1.What is a suitable way to display the average income earned by men and women in a city?
- A scatter plot
- A pie chart
- A histogram
- A bar chart
Question 2.What is a suitable way to display relationship between two continuous variables?
- A scatter plot
- A pie chart
- A histogram
- A bar chart
Question 3.What’s the best way to display median and outliers?
- A bubble chart
- A time series plot
- A box plot
- A scatter plot
Module 4. Visualization
Question 1.What is the best way to display daily temperature for a city?
- A histogram
- A pie chart
- A Box plot
- A line plot
Question 2.What extra step is needed to display two related time series variables that differ greatly in magnitude?
- Use two axes to display the lines
- Plot them by colouring the lines with different colours
- Plot the lines with different thickness
- Plot them separately in two charts
Question 3.When the sum of two or more categories equals 100, what chart type is ideally suited for displaying data?
- A line chart
- A pie chart
- A box plot
- A histogram
Module 5:-from start to finish: Beauti pays data
Question 1.When using sample data with weights, it is important to compute statistics by:
- Filtering the data with the weight variable
- Weighting the data with the appropriate variable
- Ignoring the weights
- None of the above
Question 2.When multiple observations are reported for each respondent in the data set, to compute statistics for variables about the respondents, one must:
- Ignore the presence of duplicates and compute statistics as usual
- Weight data by duplicates
- Remove duplicates before running analysis
- None of the above
Question 3.To be able to trace one’s steps, one must:
- Generate and record syntax for every command executed for the analysis
- Note steps taken for the analyses in a notebook
- Use mouse for point and click to undertake the analysis
- None of the above
Statistics 101 Cognitive class final Exam Answers:-
Question 1. What is meta data?
- Data about metal fatigue
- The metabolism data in a clinical trial
- The data about metamorphism
- It’s the data about data
Question 2. Which of the following is not an example of big data?
- Number of photographs uploaded to the internet every day
- The emails sent daily from your email provider
- The number of big basketball players in NBA (National Basketball Association)
- Weekly data about individual credit card transactions registered for your local credit card company
Question 3. SPSS is ideally suited to analyze data stored in:
- Books as words and paragraphs
- Digital video files of Hollywood movies
- Tables as rows and columns
- Digital audio files of music records
Question 4. Reproducibility in statistical analysis requires one to use statistical software that supports:
- Free usage for analysis
- Syntax (script) based analysis
- Tabular output of results
- A point and click environment
Question 5. Which of the following is an example of categorical data?
- Number of fire hydrants in a city
- Number of children at a kindergarten
- Length of the river Nile
- Mode of travel to work
Question 6. Which of the following is not an example of ordinal data?
- Ranking of athletes in an Olympic competition
- Number of trees in a park
- Level of happiness on a scale of 1 to 5
- Street numbers
Question 7. Which of the following is an example of interval data?
- The ethnicity of a person
- “None”, “Some”, “Frequent” – representing the frequency of exercise
- First, second and third rankings in a sports competition
- Weight
Question 8. For a survey of student satisfaction in a course, the population comprises:
- All students enrolled in the course
- All male students registered in the department
- All A+ students enrolled in the course
- All students registered at the university
Question 9. A mean is meaningful for the following type of data
- Audio data
- Ordinal data
- Ratio data
- Categorical data
Question 10. Median represents a value in the data set where:
- Half of the observations are above the median and the other half below it
- Most observations are negative
- Half of the observations are known and the other half not known
- Most observations are positive
Question 11. If the standard deviation of a variable is larger than the mean, the variable depicts:
- Fluidity
- Low variance
- Smoothness
- High variance
Question 12. A histogram is a graphical display of how a variable is
- Observed
- Displayed
- Distributed
- Recorded
Question 13. The following type of computation is suited for categorical data:
- Proportions
- Standard deviations
- Histogram
- Averages
Question 14. The relationship between two categorical variables can be captured by:
- Standard deviation
- A crosstabulation
- A bar chart
- A histogram
Question 15. The probability of getting a 2 by rolling TWO six-sided dice (with sides labeled as 1, 2, 3, 4, 5, 6) is
- 1/36
- 1/18
- 2
- 2/36
Question 16. What is the best way to determine the significance of relationship between two categorical variables?
- A regression model
- A Pearson Correlation test
- A Chi-square test
- A t-test
Question 17.If two continuous variables are positively correlated, their scatter plot will depict:
- A flat line
- A downward sloping curve
- An upward sloping curve
- None of the above
Question 18.What is the best way to determine the significance of relationship between two continuous variables?
- A regression model
- A Pearson Correlation test
- A Chi-square test
- A t-test
Question 19.A good chart should not be missing the following:
- A self-explanatory variable title
- Thick borders
- A dark background colour
- Bright colours
Question 20. What is the best practice to display axes labels?
- Use self-explanatory variables
- Use variable names
- Use bold font to highlight labels
- Don’t use any labels