Suppose that 20% of people own dogs. If you pick two people at random, what is the probability that they both own a dog? Give your answer as a decimal rounded to 4 places.

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

A: Solution

Q: From experience, an airline knows that only 73% of the passengers booked on a flight from New York…

A: There is only two possibilities either ticket booked(success) or not booked ( failure) If r.v is X ,…

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

A: The probability density function of binomial distribution is: Here, p=0.15, n=10.

Q: What is the probability that she will roll a number less than 3

A: Here cube is numbered from 1 to 6 So Total possible outcomes  1,2,3,4,5,6 That is total no of…

Q: Suppose the probability of an IRS audit is 2.0 percent for u.s taxpayers who file form 1040and who…

A: Given information- The probability of an IRS audit is 2.0 percent for U.S taxpayers. So, Number of…

Q: Suppose 42 % of the students in a university are baseball players. If a sample of 628 students is…

A:

Q: What is the probability of picking one person who is 30 years and above given that he reads non…

A:

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

A:

Q: If you select a three-digit number at random, what is the probability that the units digit is 7?…

A: We have to find the probability that the units digit is 7 and probability that the hundreds digit is…

Q: What is the probability that he will pass the exam, if the passing rate is 60%.

A: here given ,  exam is multiple choices , each question have 4 choices  p = probability of correct…

Q: What is the probability of someone guessing I am older than 48?

A: 8. The probability formula is, Probability=Number of favourable observationsTotal observations There…

Q: A nurse has found that persons calling a medical advice line who think they have the flu, only…

A: Solution: Let X be the number of callers actually have the flu and n be the sample number of…

Q: ACcording to a 2009 Reader's Digest article, people throw away about 12% of what they buy at the…

A: Defines that p is true proportion of the number of people, who throw away what they buy at the…

Q: thirteen percent of adults are left handed. in a group of 30 adults, what is the probability of…

A: Let X=the number of lefty n=number of trials= 30 p=probability of success= 13%=0.13 X follows a…

Q: Suppose that 44% of people have dogs. If two people are randomly chosen, what is the probability…

A: It is given that, 44% of people have dogs. It means, probability that a people have dogs= p = 0.44…

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

A: We have to find given probabaility.

Q: What is the probability that a card drawn randomly from a standard deck of 52 cards is an ace?…

A: Obtain the probability that a card drawn randomly from a standard deck of 52 cards is an ace   The…

Q: What is the probability of randomly drawing 7 cards at once from a standard deck of cards and…

A: From the provided information, Total cards in standard deck = 52 Sample size (n) = 7

Q: The Clippers basketball team are predicted to win 90% of their games during the playoffs.  If this…

A: From the given information, n=3 p=0.90 Using binomial distribution, the required probabilities will…

Q: A survey at a restaurant in small western town yielded the data below: travelers : married 27,…

A: General formula of probability is ,  Probability = Number of favorable outcomesTotal outcomes

Q: According to a 2009 Reader's Digest article, people throw away about 12% of what they buy at the…

A: Given that, n=155,p=0.12 The Mean and Standard error of the sampling distribution of sampling…

Q: If the probability that the Islanders will beat the Rangers in a game is 1/3, what is the…

A: Solution: Let X be the number of games Islanders will win in a against the Rangers and n be the…

Q: What is the probability that he will roll a number greater than 2

A: Given:  A six pair to dice rolled from  S={1,2,3,4,5,6}  then to find probability that number…

Q: Suppose that 60% of people own dogs. If two people are randomly chosen, what is the probability that…

A:

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

A: Given,

Q: According to a 2009 Reader's Digest article, people throw away about 13% of what they buy at the…

A: We have given that  Sample size n= 153 , p=13%=0.13

Q: A medication states that the odds of having an allergic reaction are 2 in 200. What is that…

A: A medication states that the odds of having an allergic reaction are 2 in 200.

Q: If you choose two numbers from 1 to 67, what is the probability that one number is greater than…

A:

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

A: The provided information are: Population proportion (p) = 35% = 0.35 Number of Americans that are…

Q: If the probability that a randomly chosen college student takes statistics is 0.34, then what is the…

A: The probability that a randomly chosen college student takes statistics is 0.34. The probability…

Q: Suppose 45% of the doctors in a hospital are surgeons. If a sample of 844 doctors is selected,…

A: Solution: From the given information, the probability of the doctor in a hospital is a surgeon is…

Q: Suppose 48 % of the registered voters in a country are Republican. If a sample of 597 voters is…

A: The mean of sampling distribution of proportion is obtained below: From the given information, the…

Q: The probability that a house in an urban area will develop a leak is 6​%. If 13 houses are…

A: Given : The probability that a house in an urban area will develop a leak is 6​%. 13 houses are…

Q: According to a 2009 Reader's Digest article, people throw away about 11% of what they buy at the…

A: From the provided information, Mean (p) = 0.11 Sample size (n) = 90 The standard deviation can be…

Q: The Gallup organization found that 26% of Americans own a cat as a pet. Find the probability 5…

A: Given that, The probability of Americans own a cat as a pet is, p=0.26 The sample size is, n = 5

Q: Which formula would you use to find out the probability of a doctor's patients being female or…

A: Given,Which formula would you use to find out the probability of a doctor's patients being female or…

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

A: Given that the odds of having an allergic  reaction are 1 in 50  So the probability is = 1/50 = 0.02…

Q: What is the probability of flipping a quarter four times and it landing on Tails each time? Leave…

A: The outcomes of flipping a quarter are {Head, Tail}.

Q: The Gallup organization found that 27% of Americans own a cat as a pet. Find the probability 5…

A: Given problem Given that   The Gallup organization found that 27% of Americans own a cat as a pet.…

Q: Suppose that 33% of people in a certain city are on an online dating website. If three people are…

A: Given information 33% of people are on online dating website Probability that people are on online…

Q: Suppose you take a 10 question quiz, with 4 options choices, only one is correct. What is the…

A: Given that: *The number of questions in the quiz is n=10. *The number of options for the question is…

Q: You select 7 statistics students at random, with replacement. What is the probability that exactly 3…

A: here given, total students =60 31 sleep on their side 20 sleep on their stomach 9 sleep on their…

Q: Suppose 45 % of the doctors in a hospital are surgeons. If a sample of 844 doctors is selected, what…

A:

Q: According to a study done by the Seattle City Council, 65% of Seattle adults own a car. Assume this…

A: The population proportion is p=0.65 The required probability is…

Q: If the probability that the Islanders will beat the Rangers in a game is 5/6, what is the…

A:

Q: Suppose you have the numbers 100–999 written on individual pieces of paper and placed in a hat. If…

A:

Q: If the probability that the Islanders will beat the Rangers in a game is 81%, what is the…

A:

Q: Suppose that 29% of people have dogs. If two people are randomly chosen, what is the probability…

A:

Q: Suppose 42% of the banks in Switzerland are private organizations.   If a sample of 442 banks is…

A: It is known that, the mean of the sampling distribution of p-hat is equal to the population…

Q: If the probability that the Islanders will beat the Rangers in a game is 85%, what is the…

A:

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.