approximately 10% of all people are left handed. consider a grouping of 15 people  how do i find the probability that none are left handed and that 7 are left handed?

Q: If 64% of the people at a certain conference are doctors, 31% are women, and 29% are female doctors,…

A: Solution

Q: According to a 2009 Reader's Digest article, people throw away approximately 20% of what they buy at…

A: Given data Probability of throwing away (p) = 0.2 No of grocery shoppers(n) = 100 Probability that…

Q: How many outcomes for this race are there? How many outcomes for this race include you winning…

A:

Q: Nine percent of the population has blood type B. If we choose 18 people at random, what is the…

A: Given,n=18p=0.09q=1-0.09=0.91Let X= no.of people have blood type B in a sample of 18…

Q: About 10% of the population of a large country is hopelessly romantic. If two people are randomly…

A: Independence of Events: Two events A and B with P(A), P(B) > 0, are said to be independent if,…

Q: According to some estimates, approximately 34.3% of the American population has A+ blood.  Suppose…

A: From the provided information, 34.3% of the American population has A+ blood that is p = 0.343…

Q: about 13% of the population if left-handed. if three people are randomly selected, what is: the…

A:

Q: About 13% of the population is left-handed. If two people are randomly selected, What is the…

A:

Q: Nextel Directory Assistance has a tendency to give Wrong Answers 36% of the time, If you Request…

A: Let a random experiment be performed repeatedly, each repetition is called a trial. let the…

Q: A class in Engineering Data Analysis consists of 6 women and 4 men. Their grades are calculated, and…

A:

Q: 5) People were asked if they prefer Pepsi or Coke. The results are in the table below. Female Male…

A: ( a ) P( both prefer Pepsi) = ? ( b ) P( Female or Coke ) = ?

Q: A sociology teacher asked her students to complete a survey at the beginning of the year. One survey…

A:

Q: A certain high school has enrolment of 1200 students. It is known that 355 students take Calculus,…

A: Given values, Total number of students = 1200 Number of students who can take Calculus = 355 Number…

Q: In general, the probability that a blood donor has Type A blood is 0.40. Consider 8 randomly chosen…

A:

Q: Eight percent of Americans have a master’s degree. If five Americans are selected at random, what is…

A:

Q: About 8% of the United State population catches the flu each season. Assuming everyone has equal…

A: Given that 8% of the United State population catches the flu each season. This means if there are…

Q: Eight percent of Americans have a master’s degree. If five Americans are selected at random, what is…

A: Let X represent random variable   n=5 p=0.08   X~ binomial (5, 0.08)

Q: About IO percent of the population is left-handed. Ofthose who are right-handed, about 40 percent…

A: Multiplication Rule:Multiplication rule for two dependent events A, and B is given by:

Q: Male 17 43 60 Female 10 30 40 Total 27 73 100   What is the probability of a randomly selected…

A: As per guidelines expert have to answer first question three subparts only dear student please…

Q: In a locality, on an average 9 people have a cat as а pet. a. What is the probability that exactly…

A:

Q: According to the Federal Communications Commission 70% of all us households have vcrs in a random…

A: According to the provided information, p=0.70 n=15 The pmf of binomial distribution is: P(X=x) =…

Q: Approximately 20% of the US population smokes cigarettes. A local government believed their…

A: Given data: The given percentage of the US population who smoke cigarettes are p=20%=0.20. The…

Q: About 10% of the population of a large country is hopelessly romantic. a) If two people are…

A: According to the provided data, the probability of any individual being hopelessly romantic is 10%,…

Q: If 66% of the people at a certain conference are doctors, 63% are women, and 77% are doctors or…

A: Given that, 66% of the people at a certain conference are doctors i.e. P(doctors) = 0.66 63% are…

Q: A medication states that the odds of having an allergic reaction are 1 in 50. What is that…

A: Given that, A medication states that the odds of having an allergic reaction are 1 in 50. Therefore,…

Q: About 35% of Americans will admit that they waste time regularly at work. A poll of 100 Americans is…

A: Given,

Q: A survey is conducted about 15% of the peoples have hearing trouble in Texas. A sample of 111…

A: From provided information, A survey is conducted, 15% of people have hearing problem. A sample of…

Q: Fifteen percent of the students at Central High take Spanish, 12% take French, and 4% take both. If…

A: SOLUTION-

Q: A survey is conducted about 15% of the people have hearing trouble in texas. A sample of 111 people,…

A: Survey is conducted about 15% of the people have hearing trouble in Texas. A sample of 111 people…

Q: 10. Five hundred students are interviewed about their ways to get to school. The results are…

A: Probability of a random student from middle school who takes a car to school where the data is given…

Q: Social Networking Based on data from the Pew Internet Project, 74% of adult Internet users use…

A: The probability of getting an adult Internet user who uses the social networking sites is 74%.

Q: A bag of Skittle’s contains 14 red, 16 yellow, 8 green, and 12 orange Skittle’s. What is the…

A: Total skittle's in bag: 50 Let D be the chance that randomly selected candy is orange:…

Q: The US population is 13% African American. If Americans, a) what is the probability that the sample…

A: Given: Population Proportion=p=0.13 sample size=n=500

Q: About 35% of the population have a college degree. If three people are randomly selected, what is…

A: Given,  p = 35% = 0.35 q = 1 - p = 1 - 0.35 = 0.65 Sample size, n = 3 Let X be a random number which…

Q: About 8% of the US population catches the flu each season assuming everyone has equal probability of…

A:

Q: Airlines report that 45% of its flights are on time.  In a random sample of 80 flights, what is the…

A: A random variable X is said to follow a binomial distribution with parameters 'n' and 'p' ( where n…

Q: According to government data the probability that an adult was never in a museum is 15% in a random…

A: Given,n=10p=0.15q=1-p=1-0.15=0.85A random variable X~Binomial(n=10 , p=0.15)P(X=x)=10x 0.15x0.8510-x…

Q: A new county hospital is attempting to determine whether it needs to add a particular specialist to…

A: The given data are: Probability of patient being sick is 5% Total number of patients coming on each…

Q: Approximately 90% of all people are right handed. Consider a grouping of 20 people. What is the…

A: Let us assume X= event that a person is right-handed.  Given that the probability of getting X is…

Q: A bag contains 46 U.S. quarters and four Canadian quarters. (The coins are identical in size.) If…

A: Given  Number of U.S quarters in a bag = 46  Number of Canadian quarters = 4 Total number of…

Q: a survey is conducted about 15% of people having hearing trouble in texas. A sample of 111 people…

A: Given: n=111, p=0.15 and p^0=0.09. Now,μ=p=0.15σ=p1-pn=0.151-0.15111=0.0339

Q: Eight percent of Americans have a master's degree. If five Americans are selected at random, what is…

A: Given,n=5p=0.08A random variable X~Binomial(n=5 , p=0.08)P(X=x)=5x0.08x1-0.085-x   ;  x=0,1,..5

Q: Researchers at a reputable university and a reputable health organization claim that approximately…

A: Binomial distribution: A discrete r.v. X taking values 0,1,2,3, …., n is said to follow a binomial…

Q: a survey is conducted about 15% of the people have hearing trouble in texas. a sample of 111 people,…

A: Given data, p15%=0.15 n=111 P(p<0.09)=?

Q: 10) According to the American Academy of Ophthalmology, there is a 45% chance that someone will have…

A:

Q: The US population is 13% African American.  If you were to take a SRS of 500 Americans, what is the…

A: It is given that the sample size n is 500 and p hat = 0.13.

Q: In a recent study, 35% of people surveyed indicated chocolate was their favorite flavor of ice…

A: Let X denote the number of those in the sample name chocolate. Then X follows a Binomial…

Q: Consider a pack of 52 playing cards. A card is selected at random. What is the probability that the…

A: Addition theorem of probability for non mutually exclusive events: Let A and B be two events with…

Q: According to a 2009 Reader's Digest article, people throw away approximately 20% of what they buy at…

A: Given: p = population proportion = 0.20 n = 100

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.