How many people need to attend a party for there to be a > 80% probability that at least two of them share the same birthday (day o year), assuming a uniform birth rate throughout the year?
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A: Given information- Sample size, n = 500 Significance level, α = 0.05 Since 482 airplane out of 500…
Q: Suppose a certain retail store has customers whose ages are normally distributed such that µ=37.5…
A: Solution: Probability that a randomly chosen customer is between 46 and 54 years old is 0.1167
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A: Given data, p=8%=0.08 n=12 P(X=2)=?
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A: c) From the part a, x 0 1 2 3 4 P(x) 0.522 0.368 0.0975 0.0115 0.001 Consider, the…
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A: Given: p=0.4 n=120
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A: Given,p=0.07q=1-pq=1-0.07=0.93A random variable X~Geometri distribution(p=0.07)P(X=x)=0.070.93x-1…
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A: Solution: Let X be the number of tax returns have no errors and n be the sample of tax returns. From…
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A: Given that a short term insurance company receives five motor vehicle claims, on average, per day.…
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A: For any event A, with sample space S, the probability can be found by the formula,
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A: Given average number of airplaine crashes of commercial airlines is 2.2
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A: The binomial probability formula is as follows:
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Q: Assuming 10% rate, 12 people are randomly selected. Find the probability that at least 10 in 12…
A: Given that n=12 , p=10%=0.10 , q=1-p=1-0.10=0.90 X~Binomial(n=12,p=0.10) X=Number of people who…
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A: The number of digits from 0 to 9 is 10.
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Q: A factory produces computer chips with a 12% defect rate. In a batch of 10 computer chips. What is…
A: Given that a factory produces computer chips with a 12% defect rate.Sample size, n = 10
Q: One interpretation of a baseball player's batting average is as the empirical probability of getting…
A: Given , n=5p=0.26Let X=no.of hits in the game.X~Binomial (n=5 , p=0.26)P(X=x)=5x0.26x1-0.265-x ;…
Q: Suppose a certain retail store has customers whose ages are normally distributed such that µ=37.5…
A: givenμ=37.5σ=7.6
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A: A quality-control inspector has ten assembly lines from which to choose products for testing. Each…
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Q: According to the U. S. Statistical Abstract 2009, about 25% of persons age 18 - 24 participated in…
A: Given, p = 25% = 0.25 n = 64
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Q: Suppose that a box contains five red balls and ten blue balls. If seven balls are selected at random…
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A: 41 Obtain the probability that 2 or fewer will withdraw. The probability that 2 or fewer will…
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A: Let p be the probability of false positive test. Then p = 631/9762. Let X denote the number of false…
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Q: The IRS indicates that 90% of all tax returns are filed electronically. Assume that figure is…
A: Let p be the proportion of all tax returns are filed electronically. Given that p = 0.9 Sample size…
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Q: Suppose we observe 84 alcoholics with cirrhosis of the liver, of whom 29 have hepatomas—that is,…
A: From given information, n = 84 and p = 0.24.
Q: Suppose a certain retail store has customers whose ages are normally distributed such that µ=37.5…
A: We have to find the probability that a randomly chosen customer is more than 48 years old..
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