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Newest Probability distributions Questions

1. truck operator has determined that a car repair shop derivers maintained trucks on schedule 60% of the time. If the operator has
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   2. 196 views
2. In a Poisson distribution P(X=x) for x=0 is 10%. Find the (Log 102.3026.) mean and P(X<3),
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   2. asked by Rajesh
   3. 178 views
3. The following table lists the probability distribution of the number of shoplifting incidents that occur during a day at a
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   2. 153 views
4. If a Poisson random variable X has an average of 2.6 find:P(X greater or =5)
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5. The distribution of the binomial random variable (X) has the following parameters p = 0.3 and n = 9. Determine P(X greater or
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6. A random variable X is normally distributed with a mean of 100 and a variance of 100​, and a random variable Y is normally
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7. In a certain city, the daily consumption of electrical energy, in millions of kilowatts per hour, can be considered as a random
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8. The prior \lambda is distributed according to \textsf{Exp}(a) (a > 0). Write the probability distribution function \pi (\lambda
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9. What is the distribution followed by Y1,...,Yn in this scenario, where Yi = 1 if Xi ≤ 0.5?Hint: The possible answer choices
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   2. asked by Jjjjj
   3. 340 views
10. Each magazine that Charlie reads takes an amount of time that follows an exponential distribution with mean 10 minutes. The
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    2. asked by Arrival
    3. 2,797 views
11. Peter has two fair tetrahedral (four sided) dice. The faces on each die are labeled l, 2, 3 and 4. One die is red and another is
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    2. asked by ali
    3. 1,001 views
12. Five males with a particular genetic disorder have one child each. The random variable x is the number of children among the
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    2. asked by Mary
    3. 1,636 views
13. Susan is a sales representative who has a history of making a successful sale from about 67% of her sales contacts. If she makes
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    2. asked by Tamia
    3. 751 views
14. Starting at time t=0, cars arrive at a car wash according to a Poisson process with rate of λ cars/hour. At any given moment,
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    2. asked by YuLin
    3. 959 views
15. Suppose that we have three engines, which we turn on at time 0. Each engine will eventually fail, and we model each engine"s
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    2. asked by Fay
    3. 6,874 views
16. Bob has two coins, A and B, in front of him. The probability of Heads at each toss is p=0.5 for coin A and q=0.9 for coin B.Bob
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    2. asked by stud81
    3. 916 views
17. An unknown distribution has a mean of 80 and a standard deviation of 12. A sample size of 95 is drawn randomly from the
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    2. asked by alex
    3. 4,020 views
18. Consider the the distribution of under-inflated tires on a four-wheel automobile. The massdensity is given by: p(0) = 0.4, p(1)
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    2. asked by Ray
    3. 534 views
19. A new car was put into production. It involved many assembly tasks. Each car was inspected at the end of the assembly line and
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    2. asked by Anonymous
    3. 4,156 views
20. In a bag there are 8 red jelly beans and 7 green jelly beans. The 4 jelly beans are randomly chosen from the bag without
    1. 3 answers
    2. asked by Jenna
    3. 1,088 views
21. Before a DVD player leavesthe factory, it is given a quality-control check. The probability that a DVD player contains 0, 1, or
    1. 2 answers
    2. asked by Hayley
    3. 1,424 views
22. The graph shows a probability distribution.Which probabilities are equal to 0.3? Select each correct answer. P(X≥3) **my
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    2. asked by sel
    3. 1,536 views
23. a. Express P (x)= 1/6 ; for x = 1, 2, 3, 4, 5, 6, in distribution form.b. Construct a histogram of the probability distribution
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    2. asked by Anonymous
    3. 632 views
24. According to a survey, 21% of motorists in a large city are uninsured. Suppose that currently 21% of all motorists in this city
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    2. asked by Anonymous
    3. 1,655 views
25. An installation technician for a specialized communication system is dispatched to a city only when three ormore orders have
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    2. asked by poisson
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26. Let T1,T2,…,Tn be i.i.d. observations, each drawn from a common normal distribution with mean zero. With probability 1/2 this
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    2. asked by Fiore
    3. 708 views
27. On any given day, mail gets delivered by either Alice or Bob. If Alice delivers it, which happens with probability 1/4, she does
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    2. asked by sagar
    3. 3,600 views
28. Let the random variable x represent the number of girls in a family with three children. Assume the probability of a childbeing
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    2. asked by slomomo
    3. 1,319 views
29. Assume your expected lifetime income is $1.5 million and the standard deviation is $250,000.a) What is the chance that you will
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    2. asked by Brittany
    3. 614 views
30. A fair coin is tossed 3 times in a row. If X is the number of heads counted, what is the mean of the probability distribution of
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    2. asked by Shawna
    3. 562 views
31. Suppose we want to model the number of rats captured in a single trap in a day, where the averagenumber caught is 5 (i.e. X ∼
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    2. asked by Janet
    3. 482 views
32. For X ∼ Poi(λ), show that E(X) = λ and V ar(X) = λ. (Hint: Find E[X(X − 1)] = E(X2) − E(X).)
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    2. asked by Becca
    3. 599 views
33. For X ∼ Bin(n, p), show that E(X) = np and Var(X) = np(1 − p)Our book defines this as true, but I don't know how to actually
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    2. asked by Janet
    3. 487 views
34. The number of arrivals per period is distributed according to the Poisson with an expected value of 0.75 unit per period. The
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    2. asked by Joseph
    3. 582 views
35. A trucking firm delivers appliances for a large retail operation. The packages (or crates) have a mean weight of 306 lb. and a
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    2. asked by Gayle 79
    3. 515 views
36. Question PartPoints Submissions Used The number of ships to arrive at a harbor on any given day is a random variable represented
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    2. asked by kim
    3. 523 views
37. A chairman is biased so that he selects his relatives for a job 3 times as likely as others. If there are 3 posts for a job.
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    2. asked by anoynomous
    3. 716 views
38. A chairman is biased so that he selects his relatives for a job 3 times as likely as others. Ifthere are 3 posts for a job. Find
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    2. asked by anoynomous
    3. 970 views
39. The lifetime of a SuperTough AAA battery is normally distributed with mean of 28.5 hours and standard deviation of 5.3 hours.
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    2. asked by Sav
    3. 1,338 views
40. The number of arrivals per period is distributed according to the poisson with the expected value of 0.75 unit per period. the
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    2. asked by FRED
    3. 1,406 views
41. The number of traffic accidents per day on a certain section of highway is thought to be Poisson distributed with a mean equal
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    2. asked by Aria
    3. 2,054 views
42. A factory’s worker productivity is normally distributed. One worker (worker 1) produces an average of 75 units per day with a
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    2. asked by SB
    3. 1,027 views
43. Maria is playing a game of chance at the Hibiscus festival, costing $1 for each game. In the game two fair dice are rolled and
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    2. asked by Koia
    3. 671 views
44. Two dice are rolled. Let the random variable X denote the number that falls uppermost on the first die and let Y denote the
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    2. asked by Price
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45. A lorry carries heavy cartons of goods. The weights of theses cartons are distributed about a mean of 100 kg and with a standard
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    2. asked by Sniper619
    3. 710 views
46. 1. In a City, out of 20000 news paper subscribers, exactly 5000 subscribe to The Hindu. An advertising firm surveys 500
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    2. asked by Arun
    3. 1,041 views
47. Suppose that fifteen observations are chosen at random from the pdf f_Y(y) = 3y^2, 0<=y<=1. Let X denote the number that lie in
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    2. asked by Jen
    3. 919 views
48. rent-4-wheels makes a profit of $12 per day for each car rented, and loses $4 per day for each car that is not rented. How many
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    2. asked by Stephanie
    3. 497 views
49. A random variable X is best described by a continuous uniform distribution from 20 to 45 inclusive. The standard deviation of
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    2. asked by Anonymous
    3. 1,960 views
50. A telemarketer with B2B Communications has a 20 percent historical probability of making a sale during a shift where 100 calls
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    2. asked by tom
    3. 618 views
51. John parks cars at a hotel. On the average, 6.0 cars will arrive in an hour. A driver's decision on whether to let John park the
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    2. asked by Mich Mich
    3. 1,088 views
52. Find the probability whenA. k = 2 and ë = 0.01 for Poisson distribution B. p = 0.01 and k = 2 for geometric distribution C.
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    2. asked by Nathan
    3. 696 views
53. The number of customers who enter a supermarket each hour is normally distributed with a mean of 600 and a standard deviation of
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    2. asked by Tony
    3. 3,440 views
54. 15.34 In a four-digit lottery, each of the four digits is supposed to have the same probability of occurrence.The table shows
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    2. asked by Anonymous
    3. 1,098 views
55. X f(x)0 .25 1 .20 2 .15 3 .30 4 .10 Is it prpbsbility distribution valid? Explain and list the requirement for a valid
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    2. asked by Laverne
    3. 521 views
56. Suppose in a carnival game, there are six identical boxes, one of which contains a prize. A contestant wins the prize by
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    2. asked by Jacob
    3. 947 views
57. Suppose in a carnival game, there are six identical boxes, one of which contains a prize. A contestant wins the prize by
    1. 0 answers
    2. asked by Jacob
    3. 685 views
58. Suppose in a carnival game, there are six identical boxes, one of which contains a prize. A contestant wins the prize by
    1. 0 answers
    2. asked by Jacob
    3. 1,206 views
59. The numbers of cookies in a shipment of bags are normally distributed, with a mean of 64 and a standard deviation of 4. What
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    2. asked by Skye
    3. 8,399 views
60. A manufacturer of luxury SUVs is concerned because warranty claims and customer dissatisfaction seems to be on the rise. The
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    2. asked by sam
    3. 647 views
61. If the life in years, of a television set is normally distributed with a mean of 46 years and a standard deviation of 4 years,
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    2. asked by Maria
    3. 897 views
62. Suppose that the probability distribution of a random variable x can be described by the formulaP(x) = x/15 For each of the
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    2. asked by Chinadoll
    3. 890 views
63. The number of accidents that occur at the intersectionof Pine and Linden streets between 3 p.m. and 6 p.m. on Friday afternoons
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    2. asked by jason
    3. 513 views
64. The First American bank is trying to determine whether it should install one or two drive-through windows. The following
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    2. asked by mervat
    3. 580 views
65. Suppose that the mean number of customers who arrive at the check-out counters each minute is 4. Create a Poisson Distribution
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    2. asked by J
    3. 1,448 views
66. a car dealer estimates that they sell two cars on average per week. they only have space in their showroom for 4 cars. if stock
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    2. asked by mary
    3. 785 views
67. a driver passes 4 sets of traffic lights. the random varaible X is the number of traffic lights he has to stop at. the
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    2. asked by mick
    3. 839 views
68. x and y independent exponential r.v with respctive parameters 2 and 3. find the cdf and density of z = x/y.
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    2. asked by ripa
    3. 464 views
69. Suppose X1;X2;...;X5 is a random sample from a n(0; variance) distribution. defineU = X1+X2+X3+X4; V =
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    2. asked by ruth
    3. 1,275 views