PDA

View Full Version : Probability / Statistics



Pages : 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 [56] 57 58 59 60

  1. Help please: "A particular bus service is on time in 80% of journeys...."
  2. Probability problem dealing with the word INFINITY
  3. Question about probability: Peta deals with a hand of 10 cards...
  4. Calculating Probability of different totals of three dice
  5. The probability of all the same type of books not being together on a shelf
  6. unique value dice probability
  7. Combinations/Permutations where only certain elements in series can vary
  8. How many birds do I have to catch?
  9. trouble undestanding conditional probability: "A group of ten individuals is..."
  10. How Often Will It Occur? "If there are 131,800 homes & 1 home burns down every 3 yrs"
  11. Frequency for rolling a die (without replacement)...and finding expected value
  12. interquartile range from frequency table
  13. Relating 3 variables in a probability problem
  14. Implied probability of this combined sequence: A, NOT A, A, NOT A
  15. Need help w/ "The odds of a man being over 2 meters tall are 0.3...." & 3 other q's
  16. Discrete Math: In how many ways can 30 ident. balls be put in 7 distinct boxes, s.t.
  17. figuring out a factor for testing tickets: Bugs are bad, passbacks are good
  18. Pattern Progression: regression for video-game Price progession from data
  19. looking for opinion: I started to develop this nice tool, of Randoms Generator.
  20. Finding the Min and Max of a range when I know the 25th, 50th, and 75th Percentiles
  21. need help w/ "You find a very distant star cluster and measure its mean velocity."
  22. Discrete Math: coin is flipped, die rolled; E_1 is "coin shows head", E_2 is "die..."
  23. If there are 50 people and the odds of turning up are 0.34 what is the variance?
  24. Discrete Math: E_1 is scores odd, different; E_2 is scores sum to 8; independent?
  25. Combinations/Permutations Math Problem: 20 people wish to make up a hockey team.
  26. Problem for game "Forum Mafia" w/ 13 players, 10 good guys and 3 bad guys.
  27. Numerical Analysis: Is Crank-Nicholson (modified Euler) or Euler more accurate?
  28. Probability: A person is in considerable pain with a non-life threatening condition.
  29. Help please: 30% of group A will steal; some members 29% more likely than others to
  30. [Highschool math] SIR Model (simulating diff-EQ w/ turtle graphics using JSXGraph)
  31. How many words (at most 6 letters) formed from a, b, c, d, e, f; Combinatorics
  32. Mean credit-card debt $4,500 (SD: $1,200): Find debt of top 2%
  33. What are the odds of dealing three 7's in a deck of cards?
  34. Null - Alternative hypothesis: target discharge measurement at least 1075mAh
  35. Probability: Distributing lottery tickets over multiple lotteries (permanent rewards)
  36. R squared value for a scatter plot is over 1: (97*2,629,673 - 17056^2)
  37. Computing expected value of policy to insurance company.
  38. Expected Value: Carnival Game
  39. Combinatorics: 10 scarfs, 8 shirts and 9 hats to 4 people
  40. Dice game problem
  41. Probability problem: When parents are carriers of an illness, what's the probability
  42. Derivation of standard distribution probability density function
  43. Combination Problem (Please help)
  44. Probability Question Help. Many thanks.
  45. finding the ratio of students in one class to another using average test scores
  46. venn diagram type probability: 42% of customers have internet service...
  47. Estimating the Implied Accuracy of a Model
  48. Need help on this combination for my email password ("chimpanzees", w/ "chimp" known)
  49. Another bus waiting paradox
  50. ODDS, RATIOS need help please.
  51. Need help with IA Correlation.
  52. Probability using cards
  53. The Hospital Question
  54. Sampling distribution problem
  55. Statistics
  56. interpolation using roots values
  57. Help Please! The scenario is that we have 28 items worth 300xp each....
  58. Binomial Distribution Problem
  59. Probability of human genome, random perfect placement of 3.2 million bases ATGC.
  60. Number of 6 digit natural numbers with even sum of digits
  61. Stats help
  62. "A survey of 89 students found that 39% were in favor of raising tution to pave...."
  63. Survival Function Issues: f= qpt^(p-1)/(((q+t^(p))^2) where q>0 and p>0
  64. Contingency Table: 2 inspectors examine same 153 units, agreeing on 23 "bad" units...
  65. Is the correct answer listed? (prob. spinner lands on even number, or on number < 4)
  66. Discrete and Continuous Distribution Hard Problem: Bees arrive at a flowerbed...
  67. Which statistical test should I choose?
  68. Let A be the width of a 95% Confidence interval for population mean based on a sample
  69. Special Match Probability: "Players are matched to a duel at random...."
  70. How Do You Get The Average % From This Table?
  71. Chebyshev's Inequality: Given fixed k>1, fixed mu, fixed sigma>0, find g(x) so that
  72. probability egg will break while being removed from box is 0.04
  73. Biased Estimates: ű : (X1 + 2X2 + 3X3)/6 & ü : (X1 + 4X2 + X3)/6
  74. Determining individual probability from given group probability
  75. Combinations or Perumations? I have 27 arrows and a bow and 10 targets to shoot at.
  76. Conditional probability? There is a bag with 10 marbles in it; 8 are black, 2 white
  77. Small problem finding the mean of a sample when I have the probability
  78. help with a golf problem (probabilities of finishing in various positions)
  79. Bridge Game: out of 4 players 1 player hasn't received a single Ace after third turn.
  80. set of numbers 1,2,...,4N gets randomly divided. calculate the probability that...
  81. How many times do we need to throw the dice to be sure of 1/2 chance that at least...
  82. Expected amount to pay for a life insurance policy
  83. S2e this estimator of the variance of error term 𝜀i
  84. Weighted probability: a machine will produce a sweet maximum 1 in 10 times
  85. Rate of Failure, Median Time Between Failures: power plant has 200 control valves....
  86. Help with this problem (statistic test): hotel's online booking form
  87. First time with Pearson’s formulae for correlation
  88. Runescape Probability Question
  89. Statistics: random sample of 35 Hollywood movies made since the year 2010...
  90. Cumulative frequency distribution of past record to calculate estimated P
  91. What is probability of pattern “number appears-none-appears” to happen in a lottery?
  92. A coin is tossed four times. What is the prob. of obtaining at least three heads?
  93. Finding a probability of variable's 1st and/or 2nd digit being 3 from uniform distrb.
  94. Var(nX) = n^2Var(X) or nVar(X) ?
  95. Rolling 2 10 sided dice, discarding one
  96. Help Please on Data Ranges: want to change "60% to 80%" top "60% to 95%"
  97. wolf eat sheep problem: There are 100 equally spaced points around a circle....
  98. daily4 lottery game
  99. Daily3 game: 3 numbers from 0 to 9 are drawn w/ repetitions allowed...
  100. Timesheet problem: assign 6 employees across 2 shifts for 31-day month