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  1. Question about 95% confidence interval for population mean
  2. Write eqn of line containing (2, 7) and parallel to x+5y = 3
  3. what is the probability that 2 cans of regular cola and 1 ca
  4. Finding Z Score of a given Area-HELP!!!
  5. number of call-letters formed from K or W, + 3 more letters
  6. ways to seat 5 in row, select 3 of 10, etc (plz check ans.)
  7. number of passwords w/ 3 letters followed by 2 digits
  8. number of permutations of HANNAH and REPELLED
  9. What is the probability that at least 2 are pasta dinners?
  10. A couple counting problems....(full work shown..)
  11. Probability in modified game of dice w/ dodecahedra
  12. help with 3 problems
  13. Prob. red 3, face card were two selected w/o replacement
  14. Number of groupings possible from a set
  15. Probabilty, combinations, deriviations, permutations (cards)
  16. Probability: 45% of respondents read Newsweek, 75% read Time
  17. "sorted numbers" have digits that, read from left to right,
  18. How many total bills are there? (picking $10 from bag w/...)
  19. International Baccalaureate Math Studies: P&S HELP
  20. standard deviation
  21. Confidence Intervals: The new Twinkle bulb has mean life of
  22. probability in multiple events when tossing a single die
  23. Factorial Quesitons: number of juries pulled from pool of 25
  24. mean, variance, standard dev, expectation of distribution
  25. expectation word problem: determine if game is 'fair'
  26. Conditional Probability
  27. Probability Excel Lab... please help!
  28. Determine power of test against alternative value, alt. pop.
  29. 83% said to use email; if 200 selected, find mean, etc, of
  30. 20-Q mult.-choice test, 5 choices/Q: find prob of 15 right
  31. Approx 10.3% drop out before graduation. Find prob. that 6
  32. Combination/Permutation: number of n-scoop ice cream cones
  33. probability sample mean will differ by > 30lb (safety belts)
  34. Combinations of Burrito toppings: how many ways to order
  35. covariance, expected value: i-th outcome has prob. p_i, with
  36. Markov chain and classifying states
  37. 1st mean wait time 28 mins, 2nd mean 26.9 mins w/ stand. dev
  38. area under standard normal dist. curve (work shown)
  39. find area under st-normal dist. curve to left of z=-2.15,
  40. N=561, 57% prefer A; can winner be predicted (alpha = 0.01)?
  41. Distribution and probabilty - parent and sample
  42. Uniform distribution: 2 friends meeting between 1pm 2pm
  43. what would be independent, dependent variables in experiment
  44. Binomial Probabilty
  45. ave. payment $982, standard dev. $180; find prob. payment is
  46. adding probability: prob. 2 of 3 are white, given 6 red, 5 w
  47. mean $792, standard dev $103; find limits of middle 50%
  48. Normal Distribution: mean 600, standard dev 100; find...
  49. prob. of complications is .30; prob <=2 of 4 have complicati
  50. z scores and probability: police exam, jury pool
  51. Coin flipping sequence probability with biased coins
  52. Dr. Zak Case Study: prepare 150- to 200-word response for Qs
  53. Die Rolling Probability
  54. Fair Dice Games: win $5 if doubles: price for fair game?
  55. [SPLIT] complete chart to find prob that two did\git number will
  56. Population vs. Sample Standard Deviation
  57. Pi in Normal Distribution Equation
  58. Candy Probability
  59. What percentile? score in normal dist. 1 standard dev. above
  60. Finding cost and profit
  61. ave of 17.2 lbs, stand. dev. 2.5 lbs; find prob (work shown)
  62. Point estimation with MLE and MoM
  63. Number of permutations of a row of students.
  64. Sequence of independent random variables...
  65. Determine a sequence of constants such that ...
  66. Show that the Rand Variables U=X^2+Y^2 and V=X/SqRt(X^2+Y^2)
  67. Probability of getting specific cards with multiple people
  68. angles and probability
  69. Probability of sample mean: drawing random sample of 49
  70. how many ways to choose 1 of 5 women, 1 of 6 men?
  71. Joint cumulative distribution function....?
  72. Help in using SPSS software (creating pie chart)
  73. how many diff. phone numbers possible, given 1st 3 digits
  74. factorial expressions: 12!/10! 31!/28! 17!/9! 700!/699! 106!
  75. Probabilities: 5-sided, 6-sided dice: find prob of same num.
  76. Fire station able to get to fire in <=5 min abt 80% of time
  77. combination equation help Thanks
  78. Proof: Expected value of the sum is equal to the sum...
  79. statistics
  80. Rolling Dice
  81. Probability
  82. Combinations/Permutations
  83. Chevbyshev's theorem
  84. probability problem
  85. Nature of Probability
  86. 99% conf. limits, given mean 0.72645, stand. dev. 0.00058
  87. mean 76, stand. dev 15, top 15% A's, bottom 10% B's. Find...
  88. Standard dev. est. at 100 hrs: sample size for 99.73% conf.
  89. Prob. 33 to 45 of 400 defective, given 10% are defective
  90. mean 4.54, stand. dev. 0.25: percent > 5, between 4.4 & 4.6
  91. mean 300lbs, stand. dev. 50lbs; prob 25 pkgs exceed 8200lbs
  92. Combinations & Permutations
  93. Find z so z < 0.02, 10% of area lies between z & 0.02
  94. chi-square test
  95. studies of student credit-card debt, state employee pay
  96. Christopher's competition
  97. Probability of sample - getting Too large a Z value
  98. Probability Distribution from a Existing Distribution?
  99. Inferential Statistics
  100. can't get this one to work out, please help! (work shown)