6. Which one is incorrect De 1. A golden cross indicates a long-term bull market going forward 2) A death cross signals a long-term bear market 3) Death crossover is considered more significant when accompanied by low trading volume 4) Crossovers frequently occur as a strong confirmation of a change in trend that has already taken place 7. Which one is correct? ( De 1. The higher the correlation among the assets in a portfolio, the riskier the portfolio is.' 2. The higher the volatility, the higher the Sharpe ratio. 3. The higher the Sorting ratio, the higher the volatility. 4. The lower rate of return of a portfolio implies higher Sorting ratio. 8. The comment_"When they're crying, you should be buying. When they're yelling, you should be selling. implies which view of the market? ( 1. Mean reverting property of the market- 2. Momentum property of the market 3. efficient market hypothesis of the market 4. random walk property of the market 9. which one is incorrect? ( 1. when market is upward trend you'd better invest in higher beta stock. 2. It is desirable to invest in market portfolio when the market is efficient. 3. Enterprise value is not for stock investors but for M&A 4. A lower PEG may indicate that a stock is overvalued