Problem 5 You invest $1 in a particular stock. Each year your investment doubles in value with probability 0.4 and decreases in value by 50% with probability 0.6. a} What is the expected value of your investment after 100 years? b) Use a normal random variable to estimate the probability that your investment will be worth more than 51 after 100 years. You can use the function 1 mm = [Laggdx in your