a. Suppose that the day trader has to pay a $0.10 transaction fee each time that she buys a share of stock. What is the expected net change in the value of her investment? 8 b. Suppose the day trader...

a. Suppose that the day trader has to pay a $0.10 transaction fee each time that she buys a share of stock. What is the expected net change in the value of her investment?
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b. Suppose the day trader prefers to track the value of her investments in cents rather than dollars. What are the mean and variance of 100 X?
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