1. Tania is a young passionate investor who needs to achieve financial independence through investing money she received from her parents. To initiate this new adventure, she has selected 2 stocks portfolios. She has decided to invest 30% of her money in Stock X with rate of return of 20%. The rest of her money will be invested in stock Y which is less risky than stock X with an annual rate of return of 15%.

Based on the above information, calculate the portfolio return.

2. The upcoming financial year forecast of the economic status and returns of the portfolio will be as follows:

State of economyProbabilityRate of returns on portfolio investmentMild Recession0.20- 5%Growth0.5015%Strong Growth0.3030%

Calculate the expected return, variance and standard deviation of the portfolio.