2/ Suppose we have a DataFrame (df) of open, high, low, close data
We would have to:
1. Use pandas broadcasting to create a new column containing our rolling MA values.
2. Use pandas .rolling() function and chain .mean() to calculate a simple MA
3. Pick columns and use .plot()
Broadcast a new column called "SMA_200_day"
Use Panda's .rolling() to get rolling values and chain .mean() to get rolling averages (aka a simple moving average)