of the DVDs the video distributor purchased from Retailer A have beendefective,whereas 9% of the DVDs purchased from Retailer B have been defective. A randomly selected DVD is found to be defective. UseBayes'Theorem to determine the probability that the DVD came from Retailer A. P = .542Permutations:The # of ways diff objects can be arranged in order Combinations:same but no order =PERMUT(n,x) =COMBIN(n,x) / n = is total possible x = goal Chapter 5=BINOM.DIST(x,n,p, cumulative) TRUE when finding the P of xor fewer False when finding the p of exactly x=POISSON.DIST(x,mean,cumulative)EXAMPLE:The mean # of chip parts per cookie is 6.7What is the probability that any particular cookie has exactly fivechip part… =POISSON.DIST(5,6.7,FALSE) = .1385A recent survey found that 83 % of households had Internet access and 84% of households had cable television.Also,it was reported that 75% of the households in the survey had both Internet and cable television. Determine the probability of selecting a household that had either Internet access or cable television..83+.84-.75 = .92 / 92%
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