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2. In Yahoo Finance, find weekly price data for six companies, Google (GOOGL), Ford Motors, Goldman Sachs, Starbucks, General Electric, and Macys Inc. from 01/01/2019
2. In Yahoo Finance, find weekly price data for six companies, Google (GOOGL), Ford Motors, Goldman Sachs, Starbucks, General Electric, and Macys Inc. from 01/01/2019 to 12/31/2019. Use these data to calculate the variance-covariance matrix of the weekly returns and correlation coefficient matrix of the weekly returns.
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