How to solve following in RMarkdown file: Please help understanding steps to follow to solve following on a data

1. Compute summary statistics for number of site visits.
2. What is the difference in the mean and median for number of site visits?
3. The variable behavPageViews is a factor variable, but we might like to do computations on the number of views. insert a new variable pageViewInt that is an integer estimate of the number of page views for each row, and add it to ecomm.df. Be conservative with the estimates; for example, when the data say "10+" views, code only as many as are indicated with confidence
4. What is the Pearson's r correlation coefficient between number of visits and the integer estimate of page views? What is the correlation if you use log of visits instead?