What function do you use to render a data visualization in a shiny server?

renderPlot() shinyGraph() renderGraph() shinyPlot()

Which of the following is not performed by Data Scientist ?

Create reproducible code Answer the question Challenge results Define the question

Which command do you use to measure the strength of the relationship between two numeric variables?

cor() table() mean() sd()

Which one of the following is not part of data preparation as defined and taught in this course?

Forecasting Running queries Data cleaning Formatting the object

What is the backup class of a data.table?

data.frame data-frame function matrix