The table below summarise the returns on stock X and Y as well the market portfolio over the last 5 years.

Year	A (%)	B (%)	Market (%)
2020	4	11	7
2019	5	10	5
2018	3	9	6
2017	6	12	7
2016	7	14	8

Required:

1. Calculate the standard deviation and beta of stock A and B. (8 marks)
2. If the risk-free rate is 2%, estimate the expected returns of stock A and B using the capital asset pricing model (CAPM). (2 marks)