1. ___ uses the formula of (x) = xp(x) 2. In the 50 items test, Miss Lodge, a Physics teacher claimed that most of the students' scores lie closer to 40. In this situation, what term is parallel to the score 40? 3. A student researcher surveyed the households in a town. The random variable x represents the number of college graduates in the households. Find the values of variance and standard deviation. The probability distribution of x is shown below: x=0, 1, 2 p(x)= 0.25, 0.5, 0.25 4. The sum of the product of each value of a discrete random variable and its corresponding probability is known as ___. 5. Which of these statements is a description of low variance? The probability of scores is almost the same as the mean. The data are close to the mean. 6. What must be the sum of the p(x) in the mean and variance of discrete random variable? (ps. the answer must be in percentage. thanks) 7. The number of hand-made bags being sold by Anne per day are 5, 6, 7, 8, 9 and 10 along with the probabilities of 0.2, 0.1, 0.1, 0.1, 0.2 and 0.3 respectively. Based from the data given, more likely, how many bags would Anne sell per day? What is the mean of the discrete random variable? Which of the following statements best interpret the computer mean? a. Anne would sell more or less 8 hand-made bags per day. b. Anne would sell 8 hand-made bags per day. c. Anne would sell exactly 7 hand-made bags per day. d. Anne would sell more than 7 hand-made bags per day. 8. What measure should you use to determine what most likely be the probability of an event would happen? 9. What measure should you use to determine how far or close the probability of events from the center or the mean?