please help me with the following probability questions...thank you
e a O 'webassignmEWEb/Studant/AssignmerrrResponses/Iamdep:\"$781997 [ {5| Nineteen percent of the cars owned by a car rental rm have some defect. What is the probability that of 3 cars selected at random, the following will occur? (Round your answers to four decimal places.) (a) none has a defect (b) at least one has a defect Need Help? _ (a) An automatic teller machine requires that each customer enter a 4-digit personal identication number (PIN) when he or she inserts a bank card. If a person finds a bank card and guesses at a PIN to use the card fraudulently, what is the probability that the person will succeed in one attempt? (Enter your probability as a fraction.) (b) If the person knows that the PIN will not have any digit repeated, what is the probability the person will succeed in guessing in one attempt? (Enter your probability as a fraction.) Need Help? _ If the rst digit of a sevenedigit telephone number cannot be a U or a 1, what is the probability that a number chosen at random will have all seven digits the same? (Enter your probability as a fraction.) |:| Need Help? i i In an llequestion matching test with 11 possible answers to match and no answer used more than once, what is the probability of guessing and getting every answer correct? (Enter your probability as a fraction.) Need Help? i i e a O 'webassignml/wzb/Smdant/AssignmenkResponses/Iamdep:\"$781997 [ {5| A box of 18 transistors has 4 defective ones. (Enter your probabilities as fractions.) (3) 1f 2 transistors are drawn from the box together, what is the probability that both transistors are defective? (b) If 2 transistors are drawn from the box together, what is the probability that neither transistor is defective? (c) If 2 transistors are drawn from the box together, what is the probability that one transistor is defective? Need Help? _ Suppose that an employer plans to hire ve people from a group of thirteen equally qualified people, of whom three are minority candidates. If the employer does not know which candidates are minority candidates and ifshe selects her employees at random, what is the probability that the following is true? (Enter your probabilities as fractions.) (a) no minority candidates are hired (b) all three minority candidates are hired (1:) one minority candidate is hired Need Help? Seven men and eight women are seminalists in a lottery. From this group, four nalists are to be selected by a drawing. What is the probability that all four finalists will be men? [Enter your probability as a fraction.) Need Help? i ii 6 a O lwebassignmuwab/mudant/Assignmemenespunses/Iamdzp:15731997 [E *I E G "' A red ball and 4 white balls are in a box. If two balls are drawn, without replacement, what is the probability of getting each of the following? (Enter your probabilities as fractions.) (a) a red ball on the rst draw and a white ball on the second (b) 2 white balls (c) 2 red balls Need Help? i i Each computer component that the Peggos Company produces is tested twice before it is shipped. There is a 0.7 probability that a defective component will be so identied by the first test and a 0.9 probability that it ' be identified as being defective by the second test. What is the probability that a defective component will not be identied as defective before it is shipped? |:| Need Help? _ _ Suppose a birth control pill is 98% effective in preventing pregnancy. (Round your answers to three decimal places.) (a) What is the probability that none of 1.00 women using the pill will become pregnant? (b) What is the probability that at least one woman per 1.00 users will become pregnant? Need Help? _
