I need help with R-Studio, please add computation formula for me to better understand

1. Create three vectors (x, y and z) from randomly generated numbers from a uniform distribution. (Hint - see "runif" in the cookbook.)
   1. Run correlations between x and y, x and z, and y and z
   2. Create a data frame from the three vectors. Cut and paste the output here
   3. Find the means of the three columns of the data frame (hint: use "apply" command
   4. Using the data frame you created, rerun the correlation between x and y. (Hint, you can select individual columns from a data frame. One way is to list the data frame and then select the specific column. For example, "df$x" refers to the x column in data frame "df". The "x" column from the data frame is specified by the dollar sign ($))