A. If a stock costs $55 one month and drops to $45 the next month, what is the expected stock price the next month, if we assume the stock follows a random walk? B. Explain both technical and...

A. If a stock costs $55 one month and drops to $45 the next month, what is the expected stock price the next month, if we assume the stock follows a random walk?

B. Explain both technical and fundamental analysis and what form of the efficient market hypothesis corresponds to each.