Suppose that 20% of all voters prefer Candidate A. If 4 people are chosen at random for a poll, what is the probability that at least 2 of them favor Candidate A? Probability (Please show your answer to 4 decimal places)

Q: Suppose that 34% of people own dogs. If you pick two people at random, what is the probability that…

A: No.of people select at random = 2 The probability of one person own dogs is, P(one person own dogs)…

Q: Assume that when adults with smartphones are randomly​ selected, 52​% use them in meetings or…

A: Given,n=5p=0.52Let X=no.of adults use their smartphonesin meetings or classes.X~Binomial(n=5 ,…

Q: Assume that when adults with smartphones are randomly​ selected,45​%use them in meetings or classes.…

A: Obtain the probability that exactly 3 of them use their smart phones in meetings or classes. The…

Q: Assume that when human resource managers are randomly​ selected, 64​% say job applicants should…

A:

Q: Suppose that 21% of people own dogs. If you pick two people at random, what is the probability that…

A: According to the given information, we have Given that 21% of people own dogs. Sample size, n = 2

Q: A poll is given showing 50% are in favor of a new building project. If 9 people are chosen at random…

A: Given data, p=0.50 n=9 P(X=3)=?

Q: Assume that when adults with smartphones are randomly​ selected, 44​% use them in meetings or…

A: Probability: Probability is a chance factor that occurs at every outcome of a random experiment.…

Q: Suppose 80% of people like peanut butter, 89% like jelly, and 78% like both. Given that a randomly…

A: Given probabilities are:                P (peanut butter) = 0.80                            P…

Q: Assume that when adults with smartphones are randomly​ selected, 49​% use them in meetings or…

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Q: Assume that when human resource managers are randomly selected, 64% say job applicants should follow…

A:

Q: A poll is given showing 80% are in favor of a new project if 5 people are chosen at random, what…

A:

Q: Assume that 10% of the population have diabetes. What is the probability that if we perform 1 study,…

A: Calculate the sample proportion as: Calculate the z score as follows: Now, the probability that…

Q: Assume that when adults with smartphones are randomly selected, 39% use them in meetings or classes.…

A: Given , n = 9 ,  p = 0.39  Let , random variable X be the number adults use there smartphones in…

Q: Suppose that 10% of people own dogs. If you pick two people at random, what is the probability that…

A: From the provided information, 10% of people own dogs that is p = 0.10 Sample size (n) = 2 X~B (2,…

Q: A coin is flipped repeatedly, and the number of tails is considered as the success. Determine the…

A: The number of trials x required to get total r number of successful trial is the negative binomial…

Q: Assume that when adults with smartphones are randomly selected,49% use them in meetings or classes.…

A:

Q: Suppose that 38% of people own dogs. If you pick two people at random, what is the probability that…

A: Given that, Probability, p = 38% = 0.38 Sample size = 2

Q: Assume that when adults with smartphones are randomly​ selected, 52​% use them in meetings or…

A: Given that adults with smartphones are randomly​ selected, 52​% use them in meetings or classes.…

Q: Assume that when adults with smartphones are randomly​ selected, 37​% use them in meetings or…

A:

Q: Assume that 15​% of people are​ left-handed. Suppose 12 people are selected at random. What's the…

A: Given : Probability of success,p = 0.15 Probability of failure,q=(1- 0.15 )= 0.85…

Q: Suppose that 25% of all voters prefer Candidate A. If 5 people are chosen at random for a poll,…

A: Obtain the probability that fewer than 2 of them favor Candidate A. The probability that fewer than…

Q: A student organization committee consisting of 7 people to be formed by selecting from a group of 26…

A: We have to find given probability.

Q: Suppose that 44% of people own dogs. If you pick two people at random, what is the probability that…

A: According to the given information, we have 44% of people own dogs.

Q: Assume that when adults with smartphones are randomly​ selected, 55​% use them in meetings or…

A: Binomial distribution: The binomial distribution gives the probability of number of successes out of…

Q: Suppose that 31% of students in a college have a smart phone. If you select three students at…

A: Obtain the probability that all three have a smart phone. The probability that all three have a…

Q: Suppose that 30% of all college freshmen gain weight. A sample of 20 selected randomly. What is the…

A: The random variable X is the college freshmen gain weight which follows binomial distribution with…

Q: Assume that when adults with smartphones are randomly​ selected, 41%use them in meetings or classes.…

A: From the provided information, Sample size (n) = 6 Assume that when adults with smartphones are…

Q: assume that when adults with smartphones are randomly selected, 44% use them in meetings or classes.…

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Q: How do I solve this problem?

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Q: Suppose a bowl contains 5 marbles, of which 3 are white and 2 are red; two marbles are picked at…

A: Answer - Suppose a bowl contains 5 marbles, of which 3 are white and 2 are red.                Two…

Q: 26% of couples who plan to marry want to do a destination wedding. In a random sample of 12 couple…

A: Given: p=0.26 n=12 The probability that at most 3 couples want to do a destination wedding is…

Q: Suppose that 84% of students in a college have a smartphone. If you select three students at random,…

A: We have given that a Binomial distribution with parameter p=84%=0.84 and sample size n=3. The pmf of…

Q: Assume that when adults with smartphones are randomly​ selected, 49​% use them in meetings or…

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Q: Assume that when adults with smartphones are randomly​ selected, 35​% use them in meetings or…

A:

Q: Suppose that 45% of all voters prefer Candidate A. If 9 people are chosen at random for a poll, what…

A: Let "X" be the voters who prefer candidate A. I will use excel formula "=BINOM.DIST(x, n, p,…

Q: Assume 79% of all ducklings are adorable. You take a sample of 16 ducklings. What is the probability…

A: Given,n=16p=0.79q=1-pq=1-0.79=0.21A random variable X~Binomial(n=16 , p=0.79)P(X=x)=16x0.79x0.2116-x…

Q: Assume that when adults with smartphones are randomly​ selected 36% use them in meetings or classes.…

A: Probability that adults use smart phones in meeting or classes (p) = 36% = 0.36 Number of adults…

Q: Suppose that 13% of people own dogs. If you pick two people at random, what is the probability that…

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Q: Suppose that 20% of people own dogs. If you pick two people at random, what is the probability that…

A: Givenno.of people own dogs = 0.20

Q: Suppose that 35% of people own dogs. If you pick two people at random, what is the probability that…

A: Given: p (people own dogs) = 0.35 We will assume independence

Q: It is believed that​ 67.3% of Americans own their own homes. Suppose a sample of 50 Americans were…

A: Consider,X be random variable that shows the number of people who has their own home which follows…

Q: Assume that when adults with smartphones are randomly​ selected, 59​% use them in meetings or…

A: Given Data: Let X be the number of adults using smartphones  n=7 p=0.59   Therefore,  X ~…

Q: Assume that when adults with smartphones are randomly​ selected, 43% use them in meetings or…

A: Define the random variable x as the number of adults using smartphones in meetings or classes. Here,…

Q: Suppose that 75% of all voters prefer Candidate A. If 10 people are chosen at random for a poll,…

A: From the provided information, 75% of all voters prefer Candidate A that is (p) = 0.75 Sample size…

Q: Suppose that 30% of all college freshmen gain weight. A sample of 18 is selected randomly. What is…

A: Given ,n=18p=0.30X=no.of freshmen gain weightX~Binomial(n=18 , p=0.30)P(X=x)=cxn  px (1-p)n-x     ;…

Q: In a recent survey, 73% of the community favored building a police substation in their neighborhood.…

A: Given that, 73% of the community favored building a police substation in their neighborhood. Thus,…

Q: Assume that when adults with smartphones are randomly​ selected, 46​% use them in meetings or…

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Q: Suppose that a screening test diagnoses 90% of sick people positive and 90% of healthy people…

A: Let us define some events A : a person is sick. B : a person is healthy. E : test gives negative…

Q: Suppose that 55% of all voters prefer Candidate A. If 4 people are chosen at random for a poll,…

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Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.