It has been observed that 23% of all new cars sold by a dealership were white.   A study was conducted of 100 new cars sold in the past month. What is the probability that fewer than 20 sold were white?   0.2047 0.2811 0.0631 correct answer is not given

Q: The mean number of patients admitted per day to the emergency room of a small hospital is 1.5. If,…

A: Let X represent the number of patients admitted per day λ=1.5   X~ Poi (1.5)

Q: In a commissioned research, the inter-collegiate swim meets management found out that an estimated…

A: GivenThe percentage of swimmers competing use performance enhancing drugs = 3% The accuracy of the…

Q: The U.S. Bureau of Printing and Engraving is responsible for printing this country’s paper money.…

A: Here, n=1000 and p=0.5%.

Q: Please answer d and e.

A: Hi, since the problem posted by you contains multiple sub-parts, we are answering the first three…

Q: A skating rink attendant monitored the number of injuries at the rink over the past year. He tracked…

A: Given data is   Minors Adults Seniors Total In-line skates 3 3 3 9 Roller skates 4 4 5 13…

Q: A university administrator expects that 25% of students in a core course will receive an A. He looks…

A:

Q: A recent survey by the New Statesman on British social attitudes asked respondents if they believe…

A: From the provided information, Sample size (n) = 6 68% of the respondent d believe inequality is too…

Q: In one study of calls to 911 in Los Angeles, it was found that 85% of the calls were not…

A: Solution: From the given information, the proportion of the calls were not emergencies is p=0.85 and…

Q: What is the probability that a randomly selected tea is mint given that the tea is caffeinated?

A: The data is given by   Caffeine-free Caffeinated Total Mint 7 7 14 Fruity 11 7 18 Total 18…

Q: Migraine medication was administered to patients in that 5% experienced weight gain as a side…

A:

Q: The leading brand of powdered milk in the Philippines has a market share of 45%. A sample of 14…

A: X: the leading brand of powdered milk in the philippinesX~Binomial(n,p)where n=14…

Q: What is the probability that a randomly selected person from the population tests positive?

A: Let us define some events A : a person has cooties. B : a person does not have cooties. E : a person…

Q: It is estimated that 70% of households own a riding lawnmower. A sample of 22 households is studied.…

A:

Q: E.What is the probability that a randomly selected person from this study tried to quit smoking…

A: Here AS PER NOTE GIVEN I HAVE CALCULATED PART E

Q: Provide an appropriate response. The National Association of Realtors estimates that 23% of all…

A: Given information Probability that homes purchased in 2004 considered investment properties(p) =…

Q: In a particular survey of internet users, 3713 respondents say that they use social networking sites…

A: We want to find the probability

Q: A pew research center survey asked adults in the United States which technology would be very hard…

A: Given information P(Internet) = 0.7 P(Smartphone) = 0.6 P(email) = 0.3 P(Landline) = 0.25 No of…

Q: On average, five birds hit the Washington Monument and are killed each week. Bill Garcy, an official…

A: Five birds hit the Washington Monument and are killed on average, each week. Funds will be allocated…

Q: What is the probability that an adult has a high BMI? What is the probability that an adult lives in…

A: ----------------------------------------------------------------------------------------------------…

Q: Forty percent of American adult women believe that meat from animals raised on genetically modified…

A: Formula : Binomial distribution is given by

Q: The Cincinnati Enquirer reported that, in the United States, 60% of adults and 82% of youths ages 12…

A: Let X be a random variable following normal distribution with mean μ and variance σ2, i.e.,…

Q: C. What is the probability that a randomly selected person from this study tried to quit smoking…

A: Here AS PER GIVEN NOTE I HAVE CALCULATED PART C

Q: The mean number of patients admitted per day to the emergency room of a small hospital is 1.5. If,…

A: Let X represents the random variable   X~ Poi (1.5)

Q: According to govemment data, the probability that a woman between the ages of 25 and 29 was never…

A:

Q: According to a survey by Accountemps, 48% of executives believe that employees are most productive…

A: Given, p = 0.48 n = 210  Since the sample size is large enough, we can approximate by Normal…

Q: A news report stated that 65% of vehicles sold nationally were SUVs. A random sample of 100 vehicles…

A: Given info: Here, n=100, p=0.65.

Q: Migraine medication was administered to patients in that 2% experienced weight gain as a side…

A:

Q: Based on a​ poll, 67​% of Internet users are more careful about personal information when using a…

A: Given p = 0.67 and n =4 Let X be the number of Internet users who are more careful about personal…

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: According to a government statistical​ organization, the unemployment rate for workers aged 22 to 25…

A: Given data: p = 5.7% Sample size (n) = 90 To find: a. What is the probability that 6 or fewer will…

Q: 4 percent of the personal computers made by the Apple Company are returned by customers for service.…

A: Given that,  Probability,p= 4% = 0.04 And sample size, n= 64 We know that, According to the given…

Q: It has been found that 1 out of every 10 visitors to a museum buys something from the gift shop. If…

A:

Q: What is the probability that the next person surveyed is very prepared?

A: It is given that Frequency for Very prepared = 247 Total = 247+982+546+341+76 = 2192

Q: ccording to a survey by Accountemps, 48% of executives believe that employees are most productive on…

A:

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

A: Given: Probability of women deliver prematurely is, p=10%=0.1. Number of pregnant women is, n=16.…

Q: Migraine medication was administered to patients in that 2% experienced weight gain as a side…

A:

Q: According to IDC, 70% of smartphones in the world use Google’s Android operating system in the…

A: It is given that 70% of smartphones in the world use Google’s Android operating system . Then , the…

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

A: Given that in a recent survey found that​ 70% of all adults over 50 wear sunglasses for driving.…

Q: Mark Zuckerberg, the founder of Facebook, announced that he will eat meat only from animals that he…

A: Given Information:   Male Female Total Yes 35 20 55 No 56 76 132   91 96 187 To find the…

Q: It has been observed that 23% of all new cars sold by a dealership were white. A study was conducted…

A: It is given that n = 100 and p = 0.23.

Q: A recent survey showed that 18% of MIS students have experienced some form of anxiety during the…

A: It is an important part of statistics. It is widely used.

Q: The chance that a U.S. police chief believes raising the cost of parking tickets "significantly…

A: We have given that  n=9 , p=1/4=0.25  , q=1-0.25=0.75 X~Binomial(n=9,p=0.25) Find P(X=5)

Q: The National Association of Realtors estimates that 23% of all homes purchased in 2004 were…

A:

Q: (a) What is the probability that among 12 randomly observed individuals, exactly 7 do not cover…

A: here given , According to a study done by Nick Wilson of Otago University Wellington, the…

Q: What is the probability that a randomly selected female student abstains from​ alcohol?

A:

Q: Sixty-three percent of U.S. households have a personal computer. In a random sample of 400…

A: Let p be the proportion of households have a personal computer. Given that p = 0.63 Let X denote the…

Q: It has been observed that 23% of all new cars sold by a dealership were white. A study was conducted…

A:

Q: What is the probability that a randomly chosen survey respondent is a male or chose "recreation" as…

A: There are totally 200 people are considered in which 96 are males, 62 are recreations, and 23 are…

Q: b) Andrew Whittaker, computer center manager, reports that his computer system experienced 25…

A: Solution

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.