Podcast
Questions and Answers
What is the function used to plot a histogram of the 'Sepal.Width' variable from the 'iris' dataset?
What is the function used to plot a histogram of the 'Sepal.Width' variable from the 'iris' dataset?
- boxplot(iris$Sepal.Width)
- barplot(iris$Sepal.Width)
- hist(iris$Sepal.Width) (correct)
- plot(iris$Sepal.Width)
Which function is used to create subsets of the 'iris' dataset for each species before plotting multiple histograms in a single chart area?
Which function is used to create subsets of the 'iris' dataset for each species before plotting multiple histograms in a single chart area?
- split(iris, Species)
- subset(iris, Species == 'setosa')
- subset(iris, iris$Species=='versicolor') (correct)
- filter(iris, Species == 'versicolor')
Which of the following is NOT a common source of data for business intelligence and analysis?
Which of the following is NOT a common source of data for business intelligence and analysis?
- Server-side scripting (correct)
- Databases
- Data streams and feeds
- Web Scrapping
Who originally developed exploratory data analysis techniques?
Who originally developed exploratory data analysis techniques?
What is the primary purpose of exploratory data analysis (EDA)?
What is the primary purpose of exploratory data analysis (EDA)?
How does exploratory data analysis (EDA) benefit stakeholders?
How does exploratory data analysis (EDA) benefit stakeholders?
What is data visualization?
What is data visualization?
What role do data visualization tools play in the world of Big Data?
What role do data visualization tools play in the world of Big Data?
How is Python commonly used in relation to data visualization tools?
How is Python commonly used in relation to data visualization tools?
Which programming language and environment is widely used for statistical computing and graphics in data science?
Which programming language and environment is widely used for statistical computing and graphics in data science?
