answer a question

Lab Assignment Name: Section 4.4 and 5.1 Due Date: Math 34 This Lab is to be worked in the Math Lab when an instructor is present. You may work with your classmates, but be sure to complete your own assignment to turn in. To receive credit for this assignment you must log in at least 2 hours each week. Section 4.4: Write all probabilities as simplified fractions: 6. Social Security Numbers A Social Security number consists of nine digits in a particular order, and repetition of digits is allowed. If randomly selecting digits for one Social Security number, what is the probability that you get the Social Security number of the president? 8. Harry Potter Books There are seven books in the Harry Potter series. If the books are read in a randomly selected order, what is the probability that they are read in the order that they were written? 12. FedEx Deliveries With a short time remaining in the day, a FedEx driver has time to make deliveries at three locations among the eight locations remaining. How many different routes are possible? 16. Florida Lottery Winning the jackpot in the Florida Lotto requires that you choose six different numbers from 1 to 53, and your numbers must match the same six numbers that are later drawn. The order of the selected numbers does not matter. If you buy one ticket, what is the probability of winning the jackpot? PAGE 58 28. Identity Theft with Credit Cards Credit card numbers typically have 16 digits, but not all of them are random. Answer the following and express probabilities as fractions. a. What is the probability of randomly generating 16 digits and getting your MasterCard number? b. Receipts often show the last four digits of a credit card number. If those last four digits are known, what is the probability of randomly generating the other digits of your MasterCard number? c. Discover cards begin with the digits 6011. If you also know the last four digits of a Dis- cover card, what is the probability of randomly generating the other digits and getting all of them correct? Is this something to worry about?For exercise 26 and 28, use the following table. Instead of summarizing observed results, the entries reflect the actual probabilities based on 30 births of twins. Sexes of Twine boy / girl boy/boy girlfboy . girl/girl 5 o o _ 5 Identical Nine Fraternal Twine 5 5 26. Fraternal Twine a. After having a sonogram, a pregnant woman learns that she will have twins. What is the probability that she will have Fraternal twins? 1). After studying the sonogram more closely. the physician tells the pregnant woman that she will give birth to twins consisting ofone boy and one girl. What is the probability that she will have fraternal twins? 2.8. Fraternal Twine ifa pregnant woman is told that she will give birth to Fraternal twins. what is the probability that she will give birth to two girls? PAGE 53