Over time, stock prices are always on the move. Consider a time series of 1064 consecutive daily prices of Visa's stock from the beginning of January 2014 to near the end of March 2018. Over time, stock prices are always on the move. Instead of looking at the prices themselves, consider the daily changes in prices found in the provided data file. One way to create a column of differences is to subtract the lag price variable from the original price variable. Consider three possible outcomes: (1) positive price change, (2) no price change, and (3) negative price change. Find the proportions of each of these outcomes. This is most easily done by sorting the price change data into another column of the software and then counting the number of negative, zero, and positive values.
