1. (5 marks) Reading a report conducted on Netflix by a third party, you find the expected monthly average return and standard deviations are 4.3% and 8.8%, respectively. Assuming that the monthly returns are normally distributed, calculate the probabilities of the following events:
   1. The return will be lower than -5%.
   2. The return will be higher than 18%.
   3. What range of return would you expect to see 68% of the time?

**You can download the historical data from Yahoo Finance! If you are planning to use a different source, mention the source in part (a).