70% of those with lung cancer are chain smokers. If his assertion is corr

Q: One prominent physician claims that 70% of those with lung cancer are heavy smokers. If his…

A: Given that : Let X be the number of patients who are heavy smokers.X~Binomial( 10, 0.70)

Q: In certain weather forecast , the chance of a thunderstorm is started as 13 % .Express the indicated…

A:

Q: Suppose there is a 25.4% probability that a randomly selected person aged 30 years or older is a…

A:

Q: A financial analyst believes that if interest rates decrease in a given period, then the…

A: Let event A denotes that the interest rates will decrease in a given period And event B denotes that…

Q: According to a research​ corporation, 46​% of women in a particular region suffer from holiday​…

A:

Q: In a recent​ survey, it was found that the median income of families in country A was $57,300. What…

A:

Q: What is the probability that a randomly selected balloon animal is green given that the balloon…

A: Since , the table given below ,    Giraffe Dog Total Purple 15 15 30 Green 5 12 17 Total 20…

Q: Suppose there is a 14.3% probability that a randomly selected person aged 20 years or older is a…

A: Given,P(a person aged 20 years or older is a smoker)=0.143P(female/he or she smokes)=0.102

Q: Sixty percent of new drivers have had driver education. During their first year, new drivers without…

A: Define the following events : A : committing an accident. B : driver having proper driver education.…

Q: A telemarketing company has a special letter-opening machine that opens and removes the contents of…

A: A discrete random variable x having the binomial distribution with the parameters n & p. And the…

Q: A recent poll  found that 30% of those surveyed are worried about aggressive drivers on the road. If…

A: Given that, A recent poll found that 30% of those surveyed are worried about aggressive drivers on…

Q: It has been found that 1 out of every 10 people who visit a local store purchasecigarettes. If we…

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

Q: A recent survey examined the use of social media platforms. Suppose the survey found that there is a…

A: The probability of union of two sets are given as, P(A or B) = P(A) + P(B) – P(A and B).

Q: An oil company has determined that the probability of finding oil at a particular drilling operation…

A: Let p be the probability of finding oil at perticular drilling operations.  Given p=0.20  Let X be…

Q: Consider a family with three children. Given that at least one of the children is a boy, whatis the…

A: Solution

Q: The results of a recent survey indicate that 71% of people in the United States use more than one…

A:

Q: A jury of 12 people is selected randomly from the population. If it is known that approximately half…

A: Solution

Q: The Statistical Bulletin reports that 22.5% of the households in the country are inhabited by one…

A: See below hand written answer: hgyukj

Q: A recent survey found that 70% of all adults over 50 wear sunglasses for driving. In a random sample…

A:

Q: Suppose there is a 10.4% probability that a randomly selected person aged 20 years or older is a…

A: Given that  P(smoke)=10.4%=0.104 P(Males/Smoke)=19.8%=0.198

Q: In a recent study, 65% of people surveyed indicate chocolate was their favorite flavor of ice cream.…

A: Given,n=11p=0.65Let X =no.of people name their favorite flavor of ice cream.X~Binomial(n=11 ,…

Q: One interpretation of a basketball player's free throw shooting percentage is the empirical…

A: P(shot on free throw) = P = 0.844q = 1-P = 0.156n = 12 throw

Q: What is the probability that exactly two of these are larger than one ?

A:

Q: The air conditioner of 2 out of 10 cars in a car dealership is faulty. For a company that buys 4 of…

A: Giventhe air conditionerof 2 out of 10 carsis…

Q: A lie detector is known to be 70% reliable when the person is quilty and 95% reliable when the…

A: The machine is reliable when person is guilty is 70% The machine is reliable when person is not…

Q: According to a study by a road safety interest group, the probability that speeding is a cause of a…

A: Solution: From the given information, the probability that speeding is a cause of a fatal crash is…

Q: It is known from the past experience that in a certain plant, there are on an average 4 industrial…

A: Given info: Here, λ = 4.

Q: If a randomly selected person from the survey drives a what is the probability that he is a 'male"?

A: Solution

Q: In a large hotel, it is known that 99% of all guests return the room keys when checking out. If 250…

A:

Q: In a state where cars have to be tested for emission of pollutants, 25% of all cars emit excessive…

A: To find: the probability that a car fails the test.

Q: A recent survey found that 70% of all adults over 50 wear sunglasses for driving. In a random sample…

A: The binomial probability distribution is, PX=x=nxpx1-pn-x In the formula, n denotes the number of…

Q: In a recent year, 304 of the approximately 300,000,000 people in the United States were struck by…

A: a. In a recent year, 304 of 300,000,000 people in the United States were struck by lightning.

Q: In a certain community, 36 percent of families own a dog, and 30 percent of families own a cat. What…

A: A = families own a dog B= families own a cat  P(A)=36%=0.36 P(B)=30%=0.30

Q: If a person is selected at random from this group, what is the probability that he/she d) Is…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a…

Q: A health HMO finds that that 56% of their policy holders are married. Amongst that same group 67%…

A: Probability that policy holder is married = P(M) = 0.56 Probability that policy holder have atleast…

Q: A safety engineer claims that only 40% of all workers wear safety helmets when they eat lunch at the…

A: Given,n=6p=0.4q=1-0.4=0.6A random variable X~Binomial(n=6 , p=0.4)P(X=x)=6x0.4x0.66-x   ;…

Q: A flu test shows that about 31% of all patients visited the hospital. Suppose that 90 patients…

A:

Q: A large national study finds that 10% of pregnant women deliver prematurely. A local obstetrician is…

A: As per bartleby guidelines only 3 subparts are answered, please upload the rest separately. It is…

Q: The local weather forecaster predicts that there is a 12% chance of rain on each day next week.…

A:

Q: The recent storm, Maring, caused a lot of people to get infected with a disease. Doctors estimate…

A: Solution: Let X be the number of people infected with the disease and n be the sample number of…

Q: is the probability that a hurricane does not occur on that day?

A: here given, It has been determined that the probability of a hurricane occurring on a certain day in…

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: 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: At a certain junior high school, two-thirds of the studentshave at least one tooth cavity. A dental…

A: Given: At a certain junior high school, two-thirds of the students have at least one tooth cavity.…

Q: What is the probability that a randomly selected adult user of the Internet is age 50 or older?…

A: Let us define some events A : adult internet user is age 18-49 B : adult internet user is age 50 or…

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

A:

Q: Of the last 6 trains to arrive at Westminster Station, 3 were on time. What is the experimental…

A: There are totally 6 trains to arrive at Westminster Station in which 3 were on time.

Q: According to the American Dental Association, 60% of all dentists use nitrous oxide in their…

A: Given Data population proportion,p = 0.6 sample size n = 600

Q: A recent survey found that 70% of all adults over 50 wear glasses for driving. In a random sample of…

A: Let the random variable X be the number of wear glasses. X takes values 0,1,2,.....,10 . p =…

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.