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Consider a stock with a negative beta, specifically beta =0.18. a-1. How would you expect this stock's rate of return to change if the overall market rose by an extra 6% ? (A negative answer shoulc be indicated by a minus sign. Input your answer as a percent rounded to 2 decimal places.) a-2. How would the stock's rate of return change if the overall market fell by an extra 6% ? (A negative answer should be indicated by a minus sign. Input your answer as a percent rounded to 2 decimal places.) b. You have $1.2 million invested in a well-diversified portfolio of stocks. Now you receive an additional $27,000 bequest. Which of the following actions will yield the safest overall portfolio return? b. You have $1.2 million invested in a well-diversified portfoli following actions will yield the safest overall portfolio return