Tutorial 6

Tutorial 6 Binomial and Poisson Distribution 1. In a Binomial Situation n=4 and π = 0.25 . Determined the probabilities of the following events using the Binomial Formula 2. In a Binomial situation n=5 and π = 0.40 . Determined the probabilities of the following events using the Binomial formula. 3. Assume a binomial distribution where n=5 and π = 0.30 4. An America Society of investors survey found 30 percent of individual investors have used a discount broker. In a random sample of nine individuals, what is the probability : 5. The united states postal service reports 95 percents of first class mail within the same city is delivered within two days of the time of mailing. Six letters are randomly sent to different locations 6. The industry standards suggest that 10 percent of new vehicle require warranty service within the first year. Jones Nissan in Sumter, South Carolina, sold 12 Nissans Yesterday 7. A telemarketer makes six phones calls per hour and is able to make a sale on 30 percent of these contacts. During the next two hours, find: 8. The recent survey by the American Accounting Association revealed 23 percent of students graduating with a major in accounting select public accounting. Suppose we select a sample of 15 recent graduates 9. Suppose 60 percent of all people prefer Coke to Pepsi. We select 18 people for further study 10. In a binomial distribution n=8 and π = 0.30 . Find the probabilities of the following events 11. In a Binomial Distributions n=12 and π = 0.60 . Find the following probabilities: 12. In a recent study 90 percent of the homes in the United States were found to have large screen TVs. In a sample 9 homes, What is the probability that : 13. A Manufacturer in window frames knows from long experience that 5 percent of the production will have some type of minor defect that will require and adjustment. What is the probability that in a sample of 20 window frames: 14. Steel Electronics, Inc sells expensive brands of stereo equipment in several shopping malls throughout of northwest section of the united States. The telemarketing research Department of steel reports that 30 percent of the customers entering the store that indicate they are browsing will, in the end make a purchase. Let the last 20 customers who enter the sore to be sample.