Select the most important factor in choosing sketching algorithms

The skew of the data Limited memory Distributed systems Having small data sets

What two parameters are estimated in a simple linear regression model?

y-intercept and slope Magnitude Direction and magnitude x and y

If you want to convert from wide to long form with the package reshape2 you use the function:

melt freeze subset corr

Which of the following is not performed by Data Scientist ?

Create reproducible code Answer the question Challenge results Define the question

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

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