(a) What is the probability that all four calls are, in fact, emergencies? (b) What is the probability that three of more calls are not emergencies? (c) How many calls n would the 911 operators need to answer to be 96% (or more) sure that at least one call is, in fact, an emergency?

Q: a. If a piece of produce is purchased, what is the probability that it is superior grade? b. If a…

A: Given: PS|X=12%P(S|Y)=8%P(S|Z)=15%P(X)=20%P(Y)=45%P(Z)=35% To find: a) PS b) PX|S

Q: Fifty-eight percent of American adults eat at a table-service restaurant at least once a week.…

A:

Q: In a large casino, the house wins on one of its games with a probability of 51%. 1:1, meaning that…

A: NOTE-AS PER POLICY I HAVE CALCULATED FIRST MAIN QUESTION ONLY.

Q: 8. Donovan was skeptical before the coin toss at the playolf game, because his teams are generally…

A: Given that, Donovan was skeptical before the coin toss at the playoff game, because his teams are…

Q: (a) If one of the participants is selected at random, what is the probability that he or she favors…

A: According to the answering guidelines,  we can answer only three subparts of a question and the rest…

Q: Republican Democrat Independent Total Indiana 905 668 201 1774 Ohio 843 1094 121 2058 Illinois…

A: There are total (2426+3563)=5989 democrats or republicans.  And there are total 6432 people.  So,…

Q: 2. In November 1994, Intel announced that a subtle flaw in its Pentium chip would affect I in 9…

A:

Q: Fifty-NINE percent of American adults eat at a table-service restaurant at least once a week.…

A: GivenNo.of American adults eat at a table service restuarant =0.59

Q: 18. On the average, two students per hour report for treatment to the first-aid room of a large…

A: Givenon average 2 students per hour report for treatmentλ=2x~poisson(λ=2)P(X=x)=e-λ×λxx! ; x≥0

Q: If one student is randomly chosen from the group, what is the probability that the student chose…

A: Given problem Given that     Homework Housework Outside Employment Recreation Other Total…

Q: 3.28 It is estimated that 4000 of the 10,000 voting residents of a town are against a new sales tax.…

A:

Q: i. Suppose in a district grade 1 through grade 5, 60 percent of the population favor a particular…

A: we are suppose to answer three sub parts .

Q: Prior to a municipal election, a public-opinion poll determined that the probability of each of the…

A:

Q: (a) What is the probability that the second marble is blue, given that the first marble was green?…

A: Here given tree diagram of marbles drawn

Q: If you flip a fair coin ten times, what is the probability of each of the following? Getting all…

A:

Q: A teacher at Soledad Prison has 22 thugs in his class, including the “extra-mean” thugs Bluto,…

A: We have to use hypergeometric distribution to find the probabilities.

Q: a man is dealt with four diamond cards from an ordinary deck of 52 cards. If he is given five more…

A: A standard deck of cards has four suites: hearts, clubs, spades, diamonds Each suite has 13 cards:…

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

A:

Q: 24% of all students enjoy the school lunch.  If there are 2000 students at the school, what is the…

A: It is given that n=2000 and p=0.24.

Q: 3. According to a July, 1999, article in the New York Times, venture capitalists had this rule of…

A: Solution

Q: The probability of event ? is ?(?)=0.3, and the probability of event ? is ?(?)=0.25. Are ? and ?…

A: Given data, P(A)=0.3 P(B)=0.25 Are A and B disjoint?

Q: a) Why is this a legitimate finite probability model?    (b) What is the probability that the…

A:

Q: 3.3 Solve the below problem: The National Fire Incident Reporting Service stated that, among…

A: Classical Definition of Probability: If there are n mutually exclusive, exhaustive and equally…

Q: (a) What is the probability that the first chip you draw is blue? (b) Suppose you drew a blue chip…

A: Note: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts…

Q: (iii) If there are a total of 100 concrete piles, what is the probability that 80 concrete piles are…

A: Binomial distribution, and standard normal dist are applicable to solve the (iii) part

Q: c. A bag contains 20 tennis balls, of which four are defective. If two balls are selected at random…

A: c.   Probability =Favorable caseTotal casesFavourable case : Number of chance to get both defective…

Q: a. What is the probability that a person selected at random likes dogs and movies? b. What is the…

A:

Q: 4. A set of traffic lights shows green for 45 seconds, amber for 5 seconds and red for 30 seconds.…

A: From the given information, Total time taken by traffic light is 80 seconds. For green it takes 45…

Q: (a) What is the probability that a student is a male, given that the student is a junior? (b) What…

A: a) The number of students are male and juniors is 2700.

Q: In a veterinary clinic, animal statistics were discussed. One vet told that he read a report that…

A:

Q: a. If an operator wants to take a one-minute break, what is the probability that there willI be no…

A: Here as PER POLICY I SHOULD HAVE TO CALCULATE 3 SUBPART ONLY EVEN THOUGH I HAVE CALCULATED ALLL

Q: In a southern state, it was revealed that 5% of all automobiles in the state did not pass…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: Delhi Kolkata Chennai Mumbai Yes 45 55 60 50 No 35 45 35 45 No opinion (i) What is the probability…

A:

Q: In a coffee shop "Scratch and Win" contest, one out of three cards is a winner. What is the…

A: From the given information, one out of three cards is a winner. P(winner)=1/3 Let us consider, the X…

Q: a) What must the value of k be for this to be a valid probability model? | b) What is the…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: Democrat Republican Total 31 68 College Degree No College Degree 37 63 69 132 Total 100 100 200 n)…

A: Solution: Given information:   Democrat  Republic  Row Total  College Degree  37 31 68 No…

Q: Which one of the following probabilities is a "cumulative" probability?

A:

Q: - An American Society of Investors survey found 30% of individual investors have used a discount…

A: 13 Given that 30% of individual investors have used a discount broker. The sample size is 9. Let us…

Q: 21. A survey involving 600 Democrats, 400 Republicans and 200 Independents asked the question: "Do…

A: Let A be the event that the selected person is Democratic. PA=6001200        =0.5 B be the event…

Q: Which probability distribution would you use to calculate the probability of success or failure of…

A: Binomial random variable: When the random variable is discrete and counts the number of successes…

Q: 10.A hotel claims that 50% of its customers are very satisfied with its service.  Answer the…

A: Introduction to binomial distribution: Consider a random experiment involving n independent trials,…

Q: Q1: If one card is drawn from a standard deck, what is the probability that the card is a face card?…

A: No. of cards in astandard deck = 52No. of face cards in a deck = 12

Q: the teachers’ room 60% are women; one in three women wears glasses and one in two men wears glasses:…

A:

Q: a. What is the probability that an adult over 40 years of age is diagnos ad as having Cancer ? b…

A: here define events adult has cancer  = C doctor diagnosing person as positive  = T p(C )=  0.05 p(C…

Q: . The average number of automobiles per minute stopping for a gas at a particular service station…

A: Given data, lamda=3 P(X>2)=? Poission distribution isP(X=x)=e-lamda*lamdaxx!

Q: A sample of 2,000 licensed drivers revealed the following number of speeding violations a. What is…

A: a) From the table, 18 drivers have exactly 2 violations. Total number of drivers= 2000 So the…

Q: (a) What is the probability that a PC is in a bedroom? (b) What is the probability that it is not in…

A: here use given probability