Economics 5 NAME Chapter 6 Practice Assignment Part 1 You run a simple statistical experiment that consists of tossing a fair, balanced coin twice. Answer questions 1 to 9 based on this experiment. 1. Define a random variable X which is equal to the number of heads occurring on the two coin tosses. Create a probability distribution table showing the possible values of X and the probability of getting each of those values. Explain why your probability distribution is valid (remember there are two conditions). 2. Create a graph showing the probability distribution you created in question 1. For discrete probability distributions it is better to just use a vertical line to show the probability value for each value of x, rather than a bar as shown on Khan and Hawkes. 3. Is this random variable a. Discrete b. Continuous 4. What is the probability that x = 0? 5. What is the probability that x is greater than or equal to 1? 6. What is the probability that x is greater than 2? 7. Use the formula to compute E(x). 8. Compute o', the variance of x. 9. Compute o, the standard deviation of x