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Quinn Allen

Quinn Allen

Ottawa University
Statistics

Statistics teacher | Verified Expert

With a major in Statistics from Ottawa University, my passion lies in unraveling the complexities of numbers and making them accessible to all. As your dedicated tutor, I bring a wealth of knowledge to guide you through various subjects. Whether it's demystifying probability or clarifying statistical concepts, I'm here to help. Let's embark on a learning journey together, where understanding is the destination.

Questions

  • Amy, Jean, Keith, Tom, Susan, and Dave have all been invited to a birthday party. They arrive randomly and each person arrives at a different time. In how many ways can they arrive?
  • How do you find the mean and median of the data set: There are 28, 30, 29, 26, 31, and 30 students in a school's six Algebra l classes?
  • The mean is the most-used measure of center, but there are times when it is recommended to use the median for data display and analysis. When might it be appropriate to use the median instead of the mean?
  • The probability of drawing a green candy from a jar of 20 candies is 1/4. How many yellow candies should be added to the jar in order to reduce the probability to 1/6 ?
  • What is a linear regression equation?
  • You have three $1 bills, four $5 bills, and two $10 bills in your wallet. You select a bill at random. Without replacing the bill, you choose a second bill at random. Find p ($5 then $10)?
  • How to solve the best point estimate for the population mean and calculate the margin of error? Wherein: A random sample of n= 75 observations from a quantitative population produced a mean of 29.7 and s= 3.286
  • A population 1000 students spends an average of $10.50 on dinner. The standard deviation is $3. A simple random sample of 64 students is taken. What are the expected value and standard deviation of the sampling distribution of the sample mean?
  • How do you find the probability of an event occurring given the odds of the event?
  • If the covariance of two variables is 0, are they necessarily independent?
  • Half of the passengers who travel to London buy the 'Daily Boom' before boarding the train. The train is full and each compartment holds 8 passenger. What is the probability that exactly three passengers in a compartment have bought the 'Daily Boom'?
  • If you were to add 5 to each value in a data set, what effect would this have on the standard deviation of the data set?
  • What is the probability of any particular day being Thursday?
  • If the die is rolled 300 times, how many times would you predict a roll of a 1 or a 6?
  • How do you use the binomial probability formula to find the probability of #x# successes given the probability #p# of success on a single trial for #n=5, x=2, p=0.25#?
  • How do you find the area under the standard normal curve that lies to the right of z = 2.01?
  • How many committees of 3 can be formed from a group of 9?
  • How do you find the probability of at least one success when #n# independent Bernoulli trials are carried out with probability of success #p#?
  • A cafeteria offers four desserts: chocolate cake, chocolate pudding, ice cream sundae, and donuts. Two desserts at random on every plate. What is the probability that any randomly-chosen plate has pudding and a donut?
  • What is the geometric mean between 3 and 18?