A roulette wheel has 38 slots in which the ball can land. Two of the slots are green, 18 are red, and 18 are black. The ball is equally likely to land in any slot. The roulette wheel is going to be spun twice, and the outcomes of the two spins are independent. The probability that the ball lands on red at least once is:

Q: n a recent survey of 619 Salinas residents, 437 stated they experienced significant traffic delays…

A: 437 stated they experienced delay 182 not experienced delay 619 total

Q: At a certain​ hospital, 18 patients have lung​ cancer, 16 patients​ smoke, and 14 have lung cancer…

A: It is given that, The hospital contains 90 patients. Number of patient who has lung cancer = 18…

Q: At WSU hospital, 64% of patients have water on the knee, 45% have butterflies in the stomach, and…

A: Given: suppose  A = patient is having water on the knee PA=0.45 B = patients are having butterflies…

Q: A consumer organization estimates that over a​ 1-year period 18​% of cars will need to be repaired​…

A: It is given that, P(repaired once)=0.18 P(repaired twice)=0.05 and P(three or more repairs)=0.04.

Q: A record-store owner assesses customers entering the store as high school age, college age, or…

A:

Q: Out of 10 cars in a car sales service, the air conditioner is defective. For a company that buys 4…

A: Given that Total number of cars = 10  Number of Defective car = 1

Q: Of the people who fished at Clearwater Park today, 30 had a fishing license, and 20 did not. Of the…

A: For Clearwater Park Prob(P)=20/50=0.4=40% And Mountain View Park. Prob(P)=12/60=0.2=20%

Q: A large industrial firm uses three local motels to provide overnight accommodations for its clients.…

A: Let R represents clients that are assigned rooms at Ramada Inn. Let S represents clients that are…

Q: In a survey of 1200 college students living in the dorms, 600 said that they had only a tablet in…

A: Solution

Q: A cell phone company found that 75% of all customers want text messaging on their phones, 80% want…

A: Given: Let's say that the total population is 100. Number of people want messaging is 75 Number of…

Q: According to the Mendelian theory of heredity, ifplants with round yellow seeds are crossbred with…

A: Hello, Thanks for posting your question here.  I believe the probabilities are ( 9/16, 3/16, 3/16,…

Q: In a large city, 37% of all restaurants accept both master and visa credit cards, and 50% accept…

A: #  Let us assume,     M=Master credit card.     V=Visa credit card.     PM∩V=37%=0.37…

Q: A record-store owner assesses customers entering the store as high school age, college age, or…

A: A) Probability of the randomly chosen customer entering the store will make a purchase is…

Q: An insurance company looks at its auto insurance customers and finds that (a) all insure at least…

A:

Q: Thirty percent of the students in Unix College is in favour of a ban on drinking in the dormitories.…

A: Let us assume that X= number of students who favor ban  X follows a binomial distribution with…

Q: a. What is the probability that a randomly selected order was placed online?   b. If a person placed…

A:

Q: In testing a certain kind or truck tire over rugged terrain, it is found that 40% of the trucks fail…

A: (a) The probability that from 2 to 6 have blowouts is obtained below: From the given information,…

Q: In a factory which manufactures bolts, machines A, B and C manufacture 25%, 35 % and 40 % of the…

A: Given that in a factory which manufactures bolts, machines A, B and C manufacture 25%, 35% and 40%…

Q: In a certain conservative precinct, 69% of the voters are registered Republicans. What…

A: Solution: Given data; P = 0.69 Sample size (n) = 100 To find: P( X >= 58) =?

Q: Seven of the 15 campus police officers available for assignment to the auditorium in which a local…

A:

Q: A manufacturer has shipped 39 cameras to an electronics​ store, of which 3 are defective. If the…

A: As per above statement: No. of defective cameras: 3 No. of total cameras: 39 No. of cameras sold: 25…

Q: A cookie is selected at random from a basket containing 16 sugar ​cookies, 28 peanut butter…

A: Ans --> Given, A cookie is selected at random from a basket containing 16  sugar cookies,  28…

Q: In a city, 28% of new cars were stolen within one year of purchase. Suppose two new cars were…

A:

Q: Of all the students who take the CPA examination, one-fourth have a Master’s degree and the…

A: It is given that one-fourth have a Master’s degree and the remainder have Bachelor’s degrees. Half…

Q: (b) In one high school, the athletic director found that 8% of the varsity athletes had concussions…

A: Solution: Let A be the event that the athletes had concussions while playing at the school. P( A)=…

Q: in a tyre manufacturing company, an industrial statistician has declared that 25% of the tyre…

A: Let X be the random variable from binomial distribution with probability (p) = 25% = 0.25 and sample…

Q: Of the students living in the dormitories at a university, 58% live at west hall, and the rest at…

A: Given that 58% live at west hall, so (100-58)%=42% live at the south tower.  Given: A sandwich shop…

Q: a) What is the probability that exactly two of the selected bulbs are rated 23-watt? b) What is the…

A: nCr=n!r!n-r!   6 lightbulbs are 13 watt,5 are rated 18 watt,6 are rated 23 watt. 3 bulbs are…

Q: In a certain examination, 80% of the candidates pass English and 75% pass French, whereas 15% fail…

A:

Q: In a certain examination, 80% of the candidates pass English and 75% pass French, whereas 15% fail…

A:

Q: In a group of 100 sports car buyers, 40 bought alarm systems, 30 purchased bucket seats, and 20…

A: Let  A be am event that alarm bought  B  be an event that bucket seat is bought   Given ,  Required…

Q: At a tune-up and brake repair shop, the manager hat found that a car will require a tune-up with…

A: Let A= a car require a tune-upB=a brake repair jobgiven,P(A)=0.6P(B)=0.1P(A∪B)=0.02

Q: A survey of the membership of a country club indicates that 50% regularly use the golf course, 34%…

A: Concept of General Addition Rule: For any two events A and B the General Addition Rule states that:…

Q: A consumer organization estimates that over a​ 1-year period 19​% of cars will need to be repaired​…

A:

Q: The chances of a delegate attending a certain seminar arriving via plane, bus, vehicle, or rail…

A:

Q: about 7% of the population of a large country is nervous around strangers. If two people are…

A: The probability that both are nervous around strangers is,

Q: At a certain hospital, 36 patients have lung cancer, 28 patients smoke, and 24 have lung cancer and…

A: Topic = Probability

Q: A roulette wheel has 38 slots in which the ball can land. Two of the slots are green, 18 are red,…

A: Probability of an event = Each spins are independent means the outcome of first spin does not…

Q: (a) a client will be assigned a room with faulty plumbing?  (b) a person with a room having faulty…

A: Here use probability tree diagram

Q: In a certain card game, four players are dealt 13 cards each from a conventional deck of 52 cards.…

A: Answer: - In a certain card game, four players are dealt 13 cards each from a conventional deck of…

Q: 2. In a particular class, 78% of the students have a smartphone, 38% have a smartphone and a tablet,…

A:

Q: In a certain community, on a particular weekday evening, the television is being watched in 85% of…

A:

Q: A total of 42 percent of the voters in a certain city classify themselves as Independents, whereas…

A: Let I be the event representing the Independent voters. Let L be the event representing the Liberal…

Q: A manufacturer of bicycles produces 80 per cent of its output in its New York factory and the rest…

A:

Q: Consider an insurer that offers 2types of policy,home insurance and car insurance. 87% of all…

A: Probability quantifies the chances of happening an event. The probability values always lie in the…

Q: In a marketing research survey, people are interviewed about product usage. One of the questions is…

A: Given: Probability of brand A, P(A)=14%P(A)=0.14 Probability of brand B, P(B)=9%P(B)=0.09 The…

Q: A large industrial firm uses 3 local motels to provide overnight accommodations for its clients.…

A: Given that a large industrial firm uses 3 local motels to provide overnight accommodations for its…

Q: A drag racer has two parachutes, a main and a backup, that are designed to bring the vehicle to a…

A: Consider an event A defines that main parachute deploys and event B defines that backup parachute…

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.