Use base plot this time, not ggplot2. 1. Plot the scatter plot of height vs. weight (so, weight on x-axis) including all the (non-missing) data. 2. Plot the histogram of hours of absences. Do not group by ID, just treat each absence as one observation. 3. Plot the histogram of age of a person corresponding to each absence. Do not group by ID, just treat each absence as one observation. When you are done, before submitting, go over the instructions again and for each plot make sure you met all the requirements.