It is known that 25% of students in a particular village are smokers. A random sample of 20 of the students is selected.  (a) Determine the probability that there are EXACTLY 4 smokers in the sample. (b) Determine the probability that there are at least 3 but no more than 6 smokers in the sample  (c) Write down the expected number of smokers in the sample

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A: Givenp=0.70n=20Let "x"be someone who has been exposed…

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A: From the provided information, It has been estimated that 21% of Americans are smokers that is p =…

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A: Number of manufactured CDs N = 1350 number of defectives d=60 sample size n = 5

Q: In a certain state, pickup trucks account for 25% of the state's registered vehicles. If 200…

A: Given problem Given that   In a certain state, pickup trucks account for 25% of the state's…

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A: Let B=Boy and G=Girl Possible number of outcomes for two children are {BB, BG, GB, GG} Let x= number…

Q: sample of four electronic components is taken from the output of a production line. The…

A: GivenPr [0 defectives] = 0.6561, Pr [1 defective] = 0.2916, Pr [2 defectives] = 0.0486, Pr [3…

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A:

Q: In an eight-child family, what is the expected number of boys? (Assume that the probability of a boy…

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Q: It has been estimated that 21% of Americans are smokers. If four American adults are chosen at…

A: Given that, proportion, p= 21%  p= 0.21 So q= 1-p= 1-0.21 = 0.79 And sample size is n= 4 So X~…

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Q: An insurance company classifies the airplane it insures into class L (low risk)   and class H (high…

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Q: A nylon connector manufacturing plant yields 15 % defective items. If 1000 connectors are randomly…

A: Here, n = 1000, p = 0.15.

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Q: The accompanying table lists probabilities for the corresponding number of girls in 4 births. What…

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Q: A manufacturer of aspirin claims that the proportion of headache sufferers who get relief with just…

A: It is given that, Aspirin claims that the proportion of headache sufferers who get relief with just…

Q: A manufacturer of laptops reports that among a shipment of 5000 sent to a local distributor, 1000…

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Q: In a certain manufacturing company, a production line has 0.25 probability of having a defective…

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A: AS PER POLICY I HAVE CALCULATED 3 SUBPARTS  here use given table and basic probability rule and…

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Q: A manufacturer of aspirin claims that the proportion of headache sufferers who get relief with just…

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Q: ) What is the probability that a randomly selected adult regularly consumes both coffee and soda? )…

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Q: Suppose a large shipment of scanners contained 9 % defectives. If a sample of size 492 is…

A: Suppose a large shipment of scanners contained 9 % defectives. If a sample of size 492 is selected,…

Q: With one method of a procedure called acceptance sampling, a sample of items is randomly selected…

A: From the given information, a sample of items is randomly selected without replacement. Total number…

Q: In a city of 180,000 people there are 20,000 legal immigrants from Latin America. What is the…

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Q: It is found that a certain pharmaceutical cures symptoms in 35% adults. If 500 people take the…

A: Givenp=0.35n=500x~Binomial(n=500,p=0.35)P(X=x)=(nx)(p)x(1-p)n-x   ; x=0,1,..,n

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.