If security prices follow a random walk, then on any particular day the odds are that an increase or decrease in price is equally likely.

Name: If security prices follow a random walk, then on any particular day the odds are that an increase or decrease in price is equally likely.
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Question

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In a random walk, the changes in price are assumed to be independent and have an equal probability of moving up or down, therefore making the odds for increase or decrease in price equally likely on any given day.

If Security Prices Follow a Random Walk, Then on Any