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  1. Weibull Proportionate Hazards Cost Function Notation
  2. Diff in Diff estimation on unbalanced panel (interaction between caretaker, patient)
  3. Conditional Probability of failure using the CDF (component has survived 14000 hours)
  4. zombie probability problem
  5. Construct margin of error, confidence intrval: mean sales of 85 units of appliance...
  6. Construct confidence interval: randomly-selected cars have mean age of 7.4 years
  7. permutation or combination - please help!! (arrangements of summer concerts)
  8. Combinations problem: any quantity, variable outcomes
  9. A movie, a tragedy and its odds.
  10. finding pdf problem
  11. Statistics: employees' Salary, Years of experience, Time needed to complete task
  12. expected value of "optimized coin flips": i pick a coin randomly and flip it over...
  13. Combination Problem: possible combinations for some cartoon drawings
  14. Poisson distribution: New version of the car-hire problem
  15. Texas Hold'Em: Probability of better hand after two additional cards dealt
  16. Modelling Poisson "Point" Process, data transmission w/ Poisson process: cell. nodes
  17. Rubrics Cube Problem
  18. Probability: 94% of bolts in tray within diameter tolerance
  19. Relating empirical data to Poisson statistics: detecting embedded pulsed laser signal
  20. Calculation of chance of success of new equipment trialed on 10 wells
  21. Calculating chance of life on another planet
  22. Probability with balls and colors: 5 white and 6 black balls in the bag...
  23. 1000 lamps: 10% of a stock of 1000 light bulbs are faulty....
  24. Bayes'rule exercise with discrete random variable: 100 high-school graduates
  25. Choosing pivot column on simplex method when there are same values
  26. Probability- Aeroplane seats: know that Boeing 737-700 has 102 seats in economy class
  27. Probability of picking certain container based on content: red, blue marbles, 2 urns
  28. Combinatoric Identity r*nCr = n*(n-1)C(r-1): What does this identity mean?
  29. VCG multiple item auction: Alice, Bob, Charlie want to purchase video streaming servi
  30. hypothesis contrasting exercise: can of mussels lists weight as 250 grams
  31. Probability: Danielle, Lilliana, Melody play fighting video game in tournament mode
  32. Given Median test score, possible scores, and how many got each value, find...
  33. What will the sex ratio in this country be? More males or females?
  34. Sports Probability Calculation: chance A's soccer team will get 6 points or more
  35. Heads, Tails or pass
  36. What statistical test should I use? (dietary diversity, nutritional knowledge, etc)
  37. Compare statistically significant difference between model output & observations
  38. Urn of unknown composition with black and white balls exercise
  39. Final Review: Of 100 stadium workers, 42 work in concession stands, 88 wear name tags
  40. Newton's Binomial: Simplify sum[n=0,m] [1/(n + 1) * m-choose-n]
  41. Can someone explain the answer but a bit clearer? choose set of 6 diff. letters s.t.
  42. At what point is more correct to pool data together?
  43. 2. When lightning seen, rain forcasted at 90%
  44. Two species of macaws (blue- & red-tailed) observed by researcher
  45. Problem set: Chemical Plant & Fish; Blood & Kidneys
  46. Relative Risk of Cholera, drinking water from Companies 1 & 2, & rest of City X
  47. help text book useless: Extreme scores don't effect which of these measures of disp.?
  48. Something I've been thinking about lately: how you would do a survey to get...
  49. Anybody can check my Markov Chain (scheme inside)?
  50. Need help with this assignment! "Use the Week 4 data set...."
  51. Prob. Distribution Fcn f(x) = 0, x<=0; a/sqrt[x], 0<x<=1; 0, x>1; find "a", calculate
  52. Which gas station should I use? "You are driving on a hwy and are running out of gas"
  53. 1: Find all n, 1<=n<=7770, n divisible by 7, n not div. by k if 7 doesn't divide k &
  54. 2: Of the 2000 numbers in the field 2000≥n≥1 someone chose 1001 different numbers...
  55. Quick Formula Question - Thanks: how many Xs I will need to get 20,000,000 views?
  56. What percentage of people scored between 100 and 110, for mean 100, s = 20?
  57. Trying to combine individual player win statistics to team's overall win probability
  58. Expectation of truncated distribution
  59. Family size from a data set
  60. Probability
  61. Which answer is correct?
  62. Weighted Probability comparison?
  63. Another counting problem: There are 34 people in line to get into a theater....
  64. Randomly chosen 2 students, out of 7 boys, 6 girls; find prob a girl was chosen
  65. generate n=1000 samples of standard uniform random variable with explain
  66. Explain the meaning of variance of a RV discrete and continuous; do experiment...
  67. Poisson/exp distribution: event occurs 2x/year on ave; prob of taking >= 9 months?
  68. Generating Functions: f(x) = sum[i=0,infty] a_i x^i, f(x)(1+2x+2x^2+x^3)=1/(1-x)^3
  69. Determining % from Static and Average Numbers
  70. Probability Distribution: Only 40% of young trees planted will survive 1st year.
  71. How likely are the following deviations to the Law of Large Numbers?
  72. I love probability, I love probability, I love probability, ... (Assume child has...)
  73. How to beat the casino
  74. means: I have 4 means for four different categories, w/ n for each...
  75. Modeling the relationship among annual income, level of education, work experience
  76. Puzzle Probability - How many options
  77. How many words can you make using TATTOO if you have to begin with two T's?
  78. Tricky probability question
  79. tricky problem: 7 books on shelf; find number of ways to pick, arrange 4
  80. How X + X = 2X step written? "Amount invested w/ simple interest doubles itself..."
  81. Calculating estimated score: Can I have 200000 more customers in same category...?
  82. Several numbers meet without being repeated
  83. Monte Carlo: Find range and defective quantities
  84. Arrangements: Frans was given 3 white and 3 black square tiles of the same size to...
  85. Can someone please explain why 1+2+3+...+n equals (n+1)_C_2 ?
  86. Nihl's riddle: You're in small labyrinth w/ 4 ways around you. At end of each is...
  87. Use the central limit theorem to show that if X has a Poisson distribution
  88. Stuck on probability question: (A and B are independent) P(B ∩ [not A] | A ∪ B)
  89. Please help me I had tried from last 3 months but did not find anything
  90. Linear Regression without intercept: form of the i-th fitted value
  91. Solving For z(obtained): have means, stand.dev. for sample pops, entire pop (n=50)
  92. Understanding the expression for the probability that one r.v. is less than another
  93. Solving occupancy problams using Striling's Numbers of the Second Kind
  94. Consequtive winning dice rolls
  95. Card Trick I guess
  96. Counting Question
  97. independent random variable
  98. Probability
  99. Hard question, please help
  100. last digit problem: What are the last two digits of 2017^2017 ?