Podcast
Questions and Answers
Which term describes the set of all data or variables in a statistical analysis?
Which term describes the set of all data or variables in a statistical analysis?
- Element
- Observation
- Population (correct)
- Sample
What type of data uses numeric measures for analysis?
What type of data uses numeric measures for analysis?
- Categorical
- Ordinal
- Quantitative (correct)
- Cross-sectional
In statistical analysis, what does the term 'Descriptive Statistics' aim to do?
In statistical analysis, what does the term 'Descriptive Statistics' aim to do?
- Describe data or variables (correct)
- Estimate characteristics of a population
- Analyze time series data
- Test hypotheses about a sample
What is the purpose of Statistical Inference?
What is the purpose of Statistical Inference?
In the context of data analytics, what does 'Sample' refer to?
In the context of data analytics, what does 'Sample' refer to?
What distinguishes big data from traditional data?
What distinguishes big data from traditional data?
What type of analytics focuses on finding the best or optimal solution using models?
What type of analytics focuses on finding the best or optimal solution using models?
Which of the following is not a key characteristic that distinguishes big data from regular data?
Which of the following is not a key characteristic that distinguishes big data from regular data?
A frequency distribution for categorical data $x$ would show the $y$ values representing the:
A frequency distribution for categorical data $x$ would show the $y$ values representing the:
Which type of analytics is used to predict future outcomes or the impact of one variable on another?
Which type of analytics is used to predict future outcomes or the impact of one variable on another?
Which characteristic of big data refers to the speed at which data is collected and generated?
Which characteristic of big data refers to the speed at which data is collected and generated?
Data mining is the process of finding insights and patterns in data that were ___ previously.
Data mining is the process of finding insights and patterns in data that were ___ previously.
What measure of central tendency is equal to the median in a symmetric distribution?
What measure of central tendency is equal to the median in a symmetric distribution?
Which of the following measures variability based on the difference between each data point and the mean?
Which of the following measures variability based on the difference between each data point and the mean?
If a data set is skewed to the left, what is the sign of its skewness?
If a data set is skewed to the left, what is the sign of its skewness?
What is the measure of relative variability expressed as a percentage?
What is the measure of relative variability expressed as a percentage?
What measure represents the range of the middle 50% of the data?
What measure represents the range of the middle 50% of the data?
Which of the following statements about percentiles is true?
Which of the following statements about percentiles is true?
