Does crime pay? The FBI Standard Survey of Crimes showed that for about 80% of all property crimes (burglary, larceny, car theft, etc.), the criminals are never found and the case is never solved. Suppose a neighborhood district in a large city suffers repeated property crimes, not always perpetuated by the same criminals. The police are investigating 9 property crime cases in this district. 1.What is the probability that none of the crimes will ever be solved? (Use 3 decimal places.) 2.What is the probability that at least one crime will be solved? (Use 3 decimal places.) 3.What is the expected number of crimes that will be solved? What is the standard deviation? (Use 2 decimal places.)

Q: 4. According to TMUSS Quarterly (Totally Made-Up Sports Statistics) April 2017, the probability that…

A: The provided information are:

Q: In 2014, approximately 13% of nonelderly Americans adults had no health insurance. Suppose that a…

A: Given: Proportion of American adults having no health insurance, p=0.13 Sample size, n=400

Q: Suppose that 92.0% of bolts and 87.0% of nails meet specifications. One bolt and one nail are chosen…

A: The objective of this question is to find the probability that neither a bolt nor a nail meets…

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A:

Q: 4. If the king's 50 knights are all randomly assigned a sword, and the 50 swords in the king's…

A:

Q: A patient taking an antiviral medication recovers from a respiratory disease with 35% probability.…

A: The probability is p=0.35 and the value of n is 18. Therefore m=np=0.35×18=6.3 Therefore the…

Q: randomly pick 10 such

A: Let X be the random variable such that number of institutions offering online courses. N: Total…

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A: Let X = goals scored in a game. The distribution is Poisson. P[X=5] = ? average is given as 2.045…

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A: Given the large sample size and the binary nature of the outcome (either a person uses the emergency…

Q: A survey of top executives revealed that 29% of them regularly read Time magazine, 22% read…

A: The answer is attached below,

Q: Suppose the prevalence of alcoholism among college students is 20% among those living in group…

A: It is given that the prevalence of alcoholism(A) among college students is 20% among those living in…

Q: Wells were dug in a plain, and it was found that 15% of the water from the dug wells was not…

A: Solution: Given: Number of new wells: n = 10 It was found that 15% of the water from the dug wells…

Q: According to the Federal Insurance Agency statistics, the proportion of teenage drivers between the…

A: It is given that n=100 and p=0.54.

Q: 15. About 8% of males are color-blind. A researcher needs a color-blind male for an experiment and…

A: Given that Probability of males whose color -blind (p) = 0.08 (8%) a) Probability that She finds a…

Q: 10. Data from the FBI revealed that of all the people arrested in the U.S. in 2020, 73% of them were…

A: To find: a) The probability that someone who was arrested is not a juvenile b) The probability that…

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A: Given : The probability of solving a problem by students A, B and C is 1/2,3/4 and 1/4

Q: Historical data indicates that Rickenbacker Airlines receives an average of 2 complaints per day.…

A:

Q: 4. Al makes 35% of his 3-point shots (each shot independent of the others). If Al were to take 6…

A: The probability that he makes less than 5 of them is,

Q: Color blindness has a rate of about 5% among males.  If you pick a group of 15 males, what is the…

A:

Q: 3. In a large population, 0.1% of individuals have certain rare disease. If 10,000 individuals are…

A: Given that, In a large population , 0.1% of the population have certain rare disease So…

Q: 6. Based on U.S. Bureau of Justice data, 16% of those arrested in the U.S.A. are women. In one state…

A: Given, p = 0.16 sample  size n = 400 Mean E(x) = np = 0.16 *400 = 64 Standard deviation σ =…

Q: If the probability of being hit by lightning is 1 in 1,000,000, what is the probability of not…

A: Given that , P (being hit by lightning) = 1/1000000 =0.000001

Q: Suppose the proportion of elementary students in Texas that are enrolled in fully remote learning…

A: Given that p = 0.20, n = 100, p(x<=10) = ?

Q: 28 percent of American males smoke cigarettes, percent smoke cigars, and 5 percent smoke both cigars…

A: Cigarette = A, Cigar = BP(A) = 28% = 0.28P(B) = 7% = 0.07P(A and B) = 5% = 0.05

Q: 5. With regards to a particular gene, the percentage of genotypes AA, Aa, and aa in a particular…

A:

Q: What is the probability of parents to have children who are both boys?         1       1/2…

A: given data   parent have two childrens. total outcomes  S : {BB,GG,BG,GB}

Q: Naval intelligence reports that 8 enemy vessels in a fleet of 20 are carrying nuclear weapons. If 5…

A: The total number of vessels, N=20The number of vessels carrying nuclear weapons, K=8The number of…

Q: 2. The probability that a patient recovers from a skin disease is 0.45. If 20 people are known to…

A: Given that  Number of trials n=20 Success of probability p =0.45 X~Bin(n,p)

Q: It is determined that 62% percent of Grade 12s attend school in a particular urban school district.…

A: Given : n = 500 p = 0.62 q = 1 - p  q = 1-0.62 q = 0.38 Here n×p and n×q is greater than 5. hence we…

Q: In economics, of all new products put on the market, 60% failed and are taken off the market within…

A: Given:  P = 60 % = 0.60 n = 80 q = 1-0.60 = 0.40 Probability that with in 2 years 57 or more will…

Q: 4. A parent's chance of passing a rare inherited disease on to a child is 0.25. What is the…

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Q: 15 of the 50 digital video recorders in an inventory are known to be defective. What is the…

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Q: The infection rate of a certain disease is estimated to be 6%. Suppose 18 people enter a room…

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Q: Lactose intolerance affects about 20% of non-Hispanic white Americans. If a person is selected from…

A: Solution: 2. From the given information, Lactose intolerance effects about 20% of non-Hispanic white…

Q: r or every 10 car accidents that happen in the Winter, 8 happen on snowy days and 2 happen on…

A:

Q: 5. Out of all registered vehicles in California, 95% of them pass the State Emissions Test. If ten…

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Q: .Suppose on a given day, there is a 43% chance Emily will forget her wallet when going to work. What…

A: Let us denote:X=the number of days when she forgets her walletp=probability of…

Q: Suppose a 5% of the items produced by a machine is defective. If a quality controller selects two…

A: Given that  Success of probability p =0.05 Number of trials n=2 X~binomial (n,p)

Q: A shipment of 8 parcels to a production company which contains 3 that are damaged. If the…

A:

Q: 3. Officials at the suicide prevention center know that 5% of all people who phone their hotline…

A: