There is a 75% chance that those who are called will serve on jury duty.  If 12 people are called for jury duty, what is the probabilty that none of the people will serve on the jury?

Q: A major issue facing many states is whether to legalize casino gambling.  Suppose the governor of…

A: Given information is : A major issue facing many states is whether to legalize casino gambling.…

Q: What are the example of experiments or activities wherein we can apply the computation of…

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Q: An economics professional body estimates that 75% of the students taking undergraduate economics…

A: Solution: Let X be the random variable that students taking undergraduate economics courses are in…

Q: GreenFacts, a non-profit organization,reports that the average adult in Europe consumed 17 litres of…

A:

Q: major issue facing many states is whether to legalize casino gambling.  Suppose the governor of one…

A:

Q: Are the outcomes of every experiment equally likely?

A: We need to justify if outcomes of every experiment are equally likely

Q: in a simple random sample of 25 companies, 23 have both twitter and facebook accounts. can we…

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Q: What is the probability of randomly selecting a 3-children family with two girls?

A: We will first list all possible outcomes in the sample space, then we will use following definition…

Q: The Gallup poll asks respondents how they would rate the honesty and ethical standards of people in…

A: Solution: YES. Because The percentage who rated medical doctors 'very high or high' is 65%The…

Q: In your own words, define a random variable.

A: We need to define Random Variable.

Q: According to the Internal Revenue Service, 75% of all tax returns lead to a refund. A random sample…

A: From the provided information, 75% of all tax returns lead to a refund that is p = 0.75 Sample size…

Q: 5 of 8 students go to middle Georgia state college. What is the probability that both of interviewed…

A: Probability: If a random experiment results in n mutually exclusive and equally likely outcomes; out…

Q: Provide a scenario of your own in which a sample is not representative.

A: A representative sample can be defined as a sample taken from a population which represents all the…

Q: According to the American Veterinary Medical Association, 31.6% of American households own a dog.…

A: Let A denote that American households own a dog Let  denote that American households does not own a…

Q: If you make random guesses for 10 multiple-choice MCAT test questions (each with five possible…

A: Given: There are 10 multiple-choice MCAT test questions each with five possible answers.  Since each…

Q: If 10% of men are bald, what is the probability that fewer than 100 in a random sample of 900 are…

A: Solution:Binomial distribution approximated to normal distribution or not is checked below:It is…

Q: Just before a referendum on a school budget, a local newspaper polls 412 voters to predict whether…

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Q: What is the probability of randomly selecting a respondent who is male and prefers Checkers?

A: The probability of selecting a respondent who is male and prefers Checkers is obtained below: Total…

Q: If a a coin and two (six-sided) dice are rolled together once, how many sample points does this…

A: Given that a coin and two six sided are rolled together once.

Q: In an experiment with 49 degrees of freedom, value was found to be 62-7. What is the chance that in…

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Q: A major issue facing many states is whether to legalize casino gambling. Suppose the governor of one…

A: a.H0:π≤0.55Ha:π>0.55

Q: what is the probability that you can score at least 7 on a true/false questionnaire consisting of 12…

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Q: A four colour equal segment spinner was spun 14 times. What is the probability of spinning Yellow…

A: We have given that A four colour equal segment spinner was spun 14 times. Probability of each colour…

Q: Out of the Ten people playing in the Game Among Us, Mike claims that he will be chosen as the…

A: 1) Null hypothesis: H0: The proportion of Mike or Leo becoming an imposter or Crewmate is same.…

Q: A group of students consisting of 20 males and 20 females were selected to participate in a research…

A: The number of male students is 20 and the number of female students is 20.

Q: What is the sample space for rolling two six-sided dice? What is the probability that the sum of the…

A: sample space for rolling two six-sided dice = (1, 1) (1, 2) (1, 3) (1, 4) (1, 5) (1, 6)(2, 1) (2, 2)…

Q: Two six-sided dice were rolled 20 times.Doubleswere rolled 4 times. What is the experimental…

A: In the given case There are a total 20 trials (n) that is 20 times the dice were rolled. The…

Q: A  survey was done to see which platform people prefer the most.    Facebook Instagram Snapchat…

A: Let us take the probability of choosing someone who prefers Instagram as P(A) and the probability of…

Q: An experiment consists in asking 8 people whether they have a college degree, and counting the…

A: Let 0 represents that the individual, answer that they do not have the degree, while 1 represents…

Q: Although studies continue to show smoking leads to significant health problems, 20% ofadults in the…

A: The 20% of the adults in the United States are smokers. The sample size is 250 adults. The formula…

Q: Suppose that a high school student is preparing to take the SAT exam. Explain why his or her…

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Q: The results of a survey by a communications research organization revealed that roughly 94​% of…

A: Given that the probability of women  who believes that having a​ "cyber affair" is​ cheating is…

Q: allup poll asks respondents how they would rate the honesty and ethical standards of people in…

A: In the given problem, it is given that the The proportion of respondents who gave a rating for a…

Q: A group of students consisting of 20 males and 20 females were selected to participate in a research…

A: The number of male students is 20 and the number of female students is 20.

Q: What is the probability that a randomly selected student has a parent involved in three or four…

A: Given that the random variable X represents the number of activities a parent of 6th to 8ty grade…

Q: An economics professional body estimates that 80% of the students taking undergraduate economics…

A:

Q: It is known that 19% of people ride public transport without paying for it. We talk to 82 people who…

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Q: A hotel employs 100 managers and staff. To ascertain their employees' opinions of a proposed health…

A: Statistic: The statistic is a number that describes characteristic that you calculate from your…

Q: If 54% of all Americans approve the recent job performance of the president, what is the expected…

A: Given: n=1036 p = 54% of all Americans approve the recent job performance of the president = 0.54…

Q: If a student is guessing randomly on a multiple choice test with 4 possible responses per question,…

A: Given: X=Guessing correct answer of multiple choice question Number of questions n=16 Number of…

Q: What is the probability of getting a sample in which more than 70% think that airplanes would be…

A: Let p be the true proportion of adults who think airplanes would be safer places if airlines…

Q: he concept of probability, including the notion of an experiment, outcomes, and sample space. How…

A: Probabilities The ratio of the number of outcomes favorable for the event to the total number of…

Q: Of the last 60 people who went to the cash register at a department store, 13 had blond hair, 19 had…

A: Solution: From the given information, number of people had blond hair is 13, number of people had…

Q: Suppose that it is known that 45% of eighteen-year-olds in a particular city do not have a driver's…

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Q: Just before a referendum on a school​ budget, a local newspaper polls 356 voters to predict whether…

A: We are given,

Q: A 2016 episode of the NPR program "This American Life" featured a radio show host from Tigerville…

A: a) Given: n=150, x=55 The estimated proportion of people in Tigerville that support Trump is given…

Q: What is the probability that none of the 10 teenagers uses pandora media inc.'s online radio…

A: The problem can be solved using binomial distribution formula.

Q: It is believed that 42% of American cell phone users have some version of an iPhone. If a random…

A:

Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.