1) Construction company A is determining whether it should submit a bid for a new shopping center. in the past their main competitor, construction company B has submitted bids 70% of the time. If company B does not bid on a job the probability that company a will get the job is 0.40. If company B bids on a job the probability that company A will get the job is 0.25. A) if company A gets the job, what is the probability that company B did not bid? B)what is the probability that company A will get the job? __________ 2) What is the preferred way for people to order fast food? A survey was conducted, but the sample sizes were not reported. suppose the results, based on a sample of 100 males and 100 females were as summarized in the table below. answer questions below. Dining preference Male Female Total Dine inside 18 8 26 orders inside to go 16 15 31 orders drive through 66 77 143 ______________________________________________ Total 100 100 200 a) if a respondent is selected at random what is the probability that he or she prefers to order at the drive through? b) if a respndent is selected at random, what is the probability that he or she is male and prefers to order at the drive through? c)if a respndent is selected at random, what is the probability that he or she is male or prefers to order at the drive through? _________________ 3) A sample of 500 respndents was selected in a large metropolitan area to study consumer behavior. The resulting contingency table is shown below. enjoys shopping Male Female total Yes 143 222 365 No 108 27 135 total 251 249 500 a)Suppose the respondent chosen is a female what is the probabilit that she does not enjoy shopping for clothes? P(does not enjoy shopping|female)= b)Suppose the respondent chose enjoys shopping for clothing. What is the probability that the individual is a male? P(male|enjoys shopping)= C) are enjoying shopping for clothing and gender of the individual independent? ________________________________ 4)There are seventeen member of a team. How many ways are there to select a team leader, assistant team leader, and team corrdinator? ________________________________ 5) A municipla bond service has three rating categories (A,B, C). suppose that in the past year, of the municipal bonds issued throught a country 50% were rated A 40% were rated B and 10% were rated C. of the municipal bonds rated A 50% were issued by cities 30% by suburbs and 20% by rural areas. of the municipal bonds rated B 40% were issued by cities, 50% by suburbs and 10% by rural areas of the municipal bonds ranted C 70% were issued by the cities, 25% by suburbs and 5% by rural areas. a) if a new municpal bond is to be issued by a city what is the probability that it will receive an A rating? b) what proportion of municipal bonds are issed by cities? c)what proportion of municipal bonds are issed by suburbs? ___________

Subject | Mathematics |

Due By (Pacific Time) | 04/20/2013 09:00 am |

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