Blue Cross Health Insurance reported that 4.5% of claims forms submitted for payment after a complex surgical procedure contain errors. If 100 of these forms are chosen at random, what is the probability that fewer than 3 of them contain errors? Use the Poisson approximation to the binomial distribution.
Answer to relevant QuestionsA corporation has 250 personal computers. The probability that any 1 of them will require repair in a given week is 0.01. Find the probability that fewer than 4 of the personal computers will require repair in a particular ...Compute the probability of 9 successes in a random sample of size n = 20 obtained from a population of size N = 80 that contains 42 successes. Consider the joint probability distribution: a. Compute the marginal probability distributions for X and Y. b. Compute the covariance and correlation for X and Y. The accompanying table shows, for credit-card holders with one to three cards, the joint probabilities for number of cards owned (X) and number of credit purchases made in a week (Y). a. For a randomly chosen person from ...A multiple-choice test has nine questions. For each question there are four possible answers from which to select. One point is awarded for each correct answer, and points are not subtracted for incorrect answers. The ...
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