The tree diagram shows a testing procedure on calculators, taken from a large batch. 1 Each time a calculator is chosen at random, the probability that it is faulty (F) is 20

I need help solving this problem: Subjects for the next presidential election poll are contacted using telephone numbers in which the last 4 digits are randomly selected (with replacement). Find the probability that for one such phone number, the last 4 digits include at least one 0.

Answer the Following Question The probability that a person WONT make a free-throw if they have a 6/7 probability of making it.

QUESTION 2 a) Based on the past data, 8% of customers will order a dessert with the meal at a noodle's restaurant. 14% of them will order a bottled beverage. i. What is the probability that a customer will order both a dessert and a bottled average? (2 marks) ii. The customers have ordered a dessert with the meal. Calculate the probability that he or she will order a bottled beverage. (2 marks) b) The Graduate Management Admission Test (GMAT) is a requirement for all applicants of MBA programs. A variety of preparatory courses are designed to help applicants improve their GMAT scores, which range from 200 to 800. Suppose that a survey of MBA students reveals that among GMAT scorers at least 650, 72% took a preparatory course; whereas among GMAT scores of less than 650 only 31% took a preparatory course. The probability for an applicant to score at least 650 is 30%. Suppose he was not taking the preparatory course. What is his probability of achieving 650 or more for GMAT score? (5…