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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. 190 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. 173 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. 149 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. 336 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. 2,791 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. 994 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. 1,629 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. 746 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. 952 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. 6,864 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. 911 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. 4,016 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. 526 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. 4,151 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. 1,082 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. 1,419 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. 1,529 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. 626 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. 1,649 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. 703 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. 3,593 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. 1,313 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. 610 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. 557 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. 479 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. 596 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. 484 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. 577 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. 510 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. 519 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. 711 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. 964 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.
    1. 1 answer
    2. asked by Sav
    3. 1,332 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. 1,401 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. 2,049 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. 1,023 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. 666 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. 706 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. 1,036 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. 914 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. 494 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. 1,956 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. 614 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. 1,083 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. 688 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. 3,435 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. 1,093 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. 514 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. 943 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. 680 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. 1,201 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. 8,392 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. 642 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. 892 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. 887 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. 508 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. 575 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. 1,441 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. 782 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
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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. 458 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. 1,268 views