Some regions in England are particularly earthquake-prone. Suppose that in one such region,28 percent of all...
Some regions in England are particularly earthquake-prone. Suppose that in one such region,28 percent of all homeowners are insured against earthquake damage. 7 homeowners are to be selected at random; what is the probability that at least 2 of the 7 selected have earthquake insurance?
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Some regions in England are particularly earthquake-prone.
Suppose that in one such region,28 percent of all...
Will rate!! Some parts of California are particularly earthquake prone. Suppose that in one metropolitan area,...
Will rate!!
Some parts of California are particularly earthquake prone. Suppose that in one metropolitan area, the chance a homeowner is insured against an earthquake is 0.30, A sample of four homeowners are to be selected at random. Suppose X is a random variable that is modeled by a binomial distribution which describes the number of homeowners out of the four that have earthquake insurance. (a) Find the probability mass function of X. (Round your answers to four decimal places.)...
218 points I Premous Answers My Notes Ask Your Teacher some parts of California are particularly...
218 points I Premous Answers My Notes Ask Your Teacher some parts of California are particularly earthquake-prone. Suppose that in one metropolitan area, 28% of all homeowners are insured against earthquake damage. Four homeowners are to be selected at random. Let χ denote the number among the four who have earthquake insurance. a Find the probability distribution o Х. Hint: Let S denote a home wne that has insurance and Fone who does not. Then one possible outcome is SF...
a) Suppose one injured individual is selected at random. What is the probability that this person...
a) Suppose one injured
individual is selected at random. What is the probability that this
person is 75-or-over and
experienced a dog-related injury?
b) Suppose one injured individual is selected at random. What is
the probability that this person is between 55 and
74 years old?
c) Suppose one injured individual is selected at random. What is
the probability that this individual is at least 55
years old (i.e., is 55 years old or older)?
d) Suppose one injured person...
One percent of all individuals in a certain population are carriers of a particular disease. A...
One percent of all individuals in a certain population are carriers of a particular disease. A diagnostic test for this disease has a 95% detection rate for carriers and a 4% detection rate for non-carriers. Suppose the test for this is applied independently to two different blood samples from the same randomly selected individual. Hint: Use Notation A= {no disease} A'={disease} B1= {1st test positive} B2={2nd test positive} a) What is the probability that the first test is positive? b)...
20% of all US households have some type of high speed internet. Suppose 80 US households...
20% of all US households have some type of high speed internet. Suppose 80 US households are selected at random. a. What is the probability that exactly 15 households have high speed access? b. What is the prob that at least 20 households have high speed access? c. What is the prob that fewer than 10 households have high speed access? d. What is the prob between 12 and 18 households have high speed access?
According to a Gallup poll, more than half of all Americans drink at least one glass...
According to a Gallup poll, more than half of all Americans drink at least one glass of soda per day. Suppose X is a random variable that represents the number of glasses of soda that a randomly selected American drinks each day. The probability distribution for X is given: X 0 1 2 3 4 P(X=x) .4 .33 .14 .09 .04 Given a randomly selected American drinks at least two glasses of soda each day what is the probability that...
In a class of 125 students, 28 are computer science majors, 52 are mechanical engineering majors,...
In a class of 125 students, 28 are computer science majors, 52 are mechanical engineering majors, 10 are civil engineers and the rest are general engineering majors.Assume students only have one major If a student is chosen at random what is the probability they are: Round your answers to 3 decimal places a clvil engineering major? o8 a civil engineering major or mechanical engineering major?496 a general engineering major? 280 not a computer science major? 776 Suppose six students from...
Suppose that we wish to assess whether more than 60 percent of all U.S. households in...
Suppose that we wish to assess whether more than 60 percent of all U.S. households in a particular income class bought life insurance last year. That is, we wish to assess whether p, the proportion of all U.S. households in the income class that bought life insurance last year, exceeds .60. Assume that an insurance survey is based on 1,000 randomly selected U.S. households in the income class and that 640 of these households bought life insurance last year. a) Assuming...
Problem #7: Suppose that 26% of all steel shafts produced by a certain process are nonconforming...
Problem #7: Suppose that 26% of all steel shafts produced by a certain process are nonconforming but can be reworked (rather than having to be scrapped). (a) In a random sample of 175 shafts, find the approximate probability that between 37 and 53 (inclusive) are nonconforming and can be reworked. (b) In a random sample of 175 shafts, find the approximate probability that at least 49 are nonconforming and can be reworked. Problem #8: A system consists of five components...
(c) If you buy 4 spark plugs, what is the probability that at least one is...
(c) If you buy 4 spark plugs, what is the probability that at least one is defective? 5. At Least One Girl: Suppose a couple plans to have 4 children and the probability of a boy is 0.50. Find the probability that the couple has at least one girl. 6.* Lie Detector: Suppose a lie detector test can detect a lie 95% of the time. You get hooked up and tell 10 truths and 10 lies. What is the probability...
Will rate!!
Some parts of California are particularly earthquake prone. Suppose that in one metropolitan area, the chance a homeowner is insured against an earthquake is 0.30, A sample of four homeowners are to be selected at random. Suppose X is a random variable that is modeled by a binomial distribution which describes the number of homeowners out of the four that have earthquake insurance. (a) Find the probability mass function of X. (Round your answers to four decimal places.)...
218 points I Premous Answers My Notes Ask Your Teacher some parts of California are particularly earthquake-prone. Suppose that in one metropolitan area, 28% of all homeowners are insured against earthquake damage. Four homeowners are to be selected at random. Let χ denote the number among the four who have earthquake insurance. a Find the probability distribution o Х. Hint: Let S denote a home wne that has insurance and Fone who does not. Then one possible outcome is SF...
a) Suppose one injured
individual is selected at random. What is the probability that this
person is 75-or-over and
experienced a dog-related injury?
b) Suppose one injured individual is selected at random. What is
the probability that this person is between 55 and
74 years old?
c) Suppose one injured individual is selected at random. What is
the probability that this individual is at least 55
years old (i.e., is 55 years old or older)?
d) Suppose one injured person...
In a class of 125 students, 28 are computer science majors, 52 are mechanical engineering majors, 10 are civil engineers and the rest are general engineering majors.Assume students only have one major If a student is chosen at random what is the probability they are: Round your answers to 3 decimal places a clvil engineering major? o8 a civil engineering major or mechanical engineering major?496 a general engineering major? 280 not a computer science major? 776 Suppose six students from...
Problem #7: Suppose that 26% of all steel shafts produced by a certain process are nonconforming but can be reworked (rather than having to be scrapped). (a) In a random sample of 175 shafts, find the approximate probability that between 37 and 53 (inclusive) are nonconforming and can be reworked. (b) In a random sample of 175 shafts, find the approximate probability that at least 49 are nonconforming and can be reworked. Problem #8: A system consists of five components...
(c) If you buy 4 spark plugs, what is the probability that at least one is defective? 5. At Least One Girl: Suppose a couple plans to have 4 children and the probability of a boy is 0.50. Find the probability that the couple has at least one girl. 6.* Lie Detector: Suppose a lie detector test can detect a lie 95% of the time. You get hooked up and tell 10 truths and 10 lies. What is the probability...
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