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Madeline Adams

Madeline Adams

Cedarville University
Statistics

Statistics teacher | Tutor for 9 years

I'm a passionate educator with a focus on Statistics, holding a degree from Cedarville University. My commitment to fostering a deep understanding of the subject drives me to help students grasp complex concepts effortlessly. With a foundation rooted in academia, I bring practical insights to the virtual classroom. Let's embark on a journey of learning and unravel the mysteries of statistics together!

Questions

  • Can someone help me with this problem?
  • Two cards are drawn from a well-shuffled ordinary deck of 52 cards. What is the probability that they are both aces if the first card is not replaced?
  • What is the difference between mean, median, average, and mode?
  • What are the mean and median of the following?: 2,5,5,6,6,6,7,7,7,7,9,10
  • For mean 6 and standard deviation 2, how much area is under the bell curve, above the horizontal axis, and between x = 0 and x = 12?
  • Let #X# be a binomial random variable with #p=0.3# and #n=15#. What is #P(X=5)#?
  • If #x# is a binomial random variable, what is the probability of #x# for #n = 4, x = 1, p = 0.3#?
  • Given a normal distribution with mean = 100 and standard deviation = 10, if you select a sample of n = 25, what is the probability that x-bar is less than 95?
  • If you roll a die six times, what is the probability that the number of even rolls is less than the number of rolls of 3 and 5 combined?
  • How do you add probabilities?
  • What is the probability that the sum of the two dice is greater than or equal to 8?
  • What is the central limit theorem?
  • How to tell the difference between discrete or continuous random variables given the weight of bags of apples, with 20 apples in a bag?
  • The number of cases of tetanus reported in the US in a single month has a Poisson distribution with a parameter of λ= 4.0. What is the probability that five or more cases will be reported?
  • Two six sided dice are rolled. What is the probability that the sum is a prime number?
  • How do you find the margin error for a 90% confidence level with n = 480, x = 130?
  • What is 'z' for an 88% confidence interval?
  • Let z be a random variable with a standard normal distribution. Find the indicated probability. What is the probability that P(−0.61 ≤ z ≤ 2.50)?
  • A child mixes ten good and three dead batteries. To find the dead batteries, his father tests them one by one and without replacement. What is the probability that his father finds all three dead batteries at the fifth test?
  • What do the mean, median, and mode tell you about a set of numbers?