Suppose that 70% of people walking down a road are wearing a mask. If 10 people are selected randomly, what is the probability that more than 6 of them are wearing a mask? Group of answer choices 35.0% 65.0% 85.0% 20.0%

Q: Suppose that 11% of people are left handed. If 6 people are chosen at random, what is the…

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Q: 10. At John F. Kennedy Elementary School, 81% of students buy their lunch. In a randomly selected…

A: We have given that p = 0.81 n = 22 X ~Binomial(n, p) X ~ Binomial (22, 0.81)The PMF of the Binomial…

Q: 8. Suppose a couple has three children (assume that the probability of having a g boy is 0.5) a.…

A: A couple has three children. Probability of having a girl or a boy is 0.5

Q: Assume that when adults with smartphones are randomly selected? 53% use them in meetings or classes.…

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Q: A poll is given, showing 30% are in favor of a new building project. If 8 people are chosen at…

A: The information provided in the question are as follows :- Proportion of people in favor of a new…

Q: Suppose 40% of college students plan to vote in the election. Now suppose we randomly select 200…

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Q: MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the…

A: From given data we have : n=21 p=0.06

Q: In circuit board testing, the chance that a particular diode will break is 0.01. Suppose a circuit…

A: Let, X=the number of diodes that break n=number of trial= 200 p=probability of success= 0.01 X…

Q: A poll is given, showing 50% are in favor of a new building project. If 6 people are chosen at…

A: Binomial distribution : In binomial distribution, the number of trials is fixed and the number of…

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: uppose that in a certain community, 80% of drivers fasten their seat belt. Determine the probability…

A: Solution: Let X be the random variable that the number of drivers fasten their seat belt in certain…

Q: 5. A study indicates that 4% of American teenagers have tattoos. You randomly sample 30 teenagers.…

A: The binomial distribution probability is:P(X=x)=nCx​px(q)n−xwhere ::: x represents the total number…

Q: Suppose that 46% of people own dogs. If you pick two people at random, what is the probability that…

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Q: Assume that when adults with smartphones are randomly​ selected, 63​% use them in meetings or…

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Q: 11. In a survey of high school students, 288 students indicated that they played organized sports…

A: Step 1:To find the probability that a randomly selected student indicated they played organized…

Q: 20.  In a large shipping company, 70% of packages arrive to their destination on time.  If 9…

A: Solution Let X : packages arrive to their destination on time  And X ~ Binomial (n=9, p=0.70) Ans we…

Q: A poll is given, showing 55% are in favor of a new building project. If 8 people are chosen at…

A: Given,n=8p=0.55X=no.of people favor the new building projectX~Binomial (n=8 , p=0.55)P(X=x)=nx px…

Q: 20. Suppose that 21% of people own dogs. If you pick two people at random, what is the probability…

A: Given,The probability people own dogs is 0.21

Q: 9. Sixty percent of all road accidents are due to distracted driving. In a random sample of 400…

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Q: A die is thrown randomly 450 times. The frequencies of outcomes 1, 2, 3, 4, 5, and 6 are shown in…

A: From the given table we know thatTotal frequency(N)=450

Q: 9. If a family has three children, what is the probability that there are two boys and one girl (in…

A: Answer Correct option is 37.5%

Q: Suppose that 62% of people in California think we should open restaurants to diners. If you sample…

A: It is given that n =80 and p =0.62.

Q: A survey indicates that 65% of people prefer coffee over tea. If 20 people are randomly selected,…

A: probability that people prefer coffee over tea(p)=0.65sample size(n)=20Let "x" no. of people who…