A portfolio is equally split between 10 different stocks, each of which has a beta of 1 and the same correlation with the market portfolio. The idiosyncratic component of returns is uncorrelated across stocks. The annualized volatility of the market is 15%, and of the portfolio is 17%.

(a) What is the volatility of each stock?

(b) What is the correlation between each stock and the market?

(c) What is the correlation between one stock and another?