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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

  • In how many ways can five models line up to have their photograph taken?
  • The Thomas family spent $200 on groceries, $240 dining out, and $40 on school lunches last month. Their monthly income is $6,000. How many degrees in a circle graph would their food budget require?
  • What is the median of this set of data: 86, 72, 65, 82, 91, 94?
  • A school band sold 30 raffle tickets, each labeled with a number from 1 to 30. One winning ticket will be drawn. What is the probability that the number of the winning ticket will be a multiple of 4 or the number 19?
  • The pies sold 869 pies during the month of January. What was the mean number of pies sold per day?
  • A basket contains 8 pieces of fruit: 3 apples, 3 oranges, and 2 bananas. Jonas takes a piece of fruit at random from the basket, and then Beth takes a piece at random. What is the probability that Jonas will get an orange and Beth will get an apple?
  • How many different ways can the first 10 letters of the alphabet be arranged?
  • A local restaurant sells sandwiches with 5 different choices for bread, 7 types of meat, and 4 types of cheese. You can also choose to add mayonnaise, mustard, both, or neither. How many different combinations are possible?
  • A random sample of 10 children found that their average growth for the first year was 9.8 inches. What is the 95% confidence interval of the population mean for growth during the first year?
  • Suppose an experiment consists of randomly drawing a marble out of a bag and replacing the marble. The bag contains 3 yellow, 4 red, and 8 blue marbles. If the experiment was repeated 20 times, how many times would you predict the marble would be yellow?
  • A normal distribution has a mean of 142 and a standard deviation of 16. What is the probability that a randomly selected value lies between 142 and 174?
  • If the radius of the shaded center circle is 1 and the radius of the entire dartboard is 4, what is the probability of throwing a dart and hitting the white part of the board?
  • How many ways are there of seating #10# couples around a round table such that each couple is sat together?
  • What's the probability of drawing 7 preselected balls from a bowl of 35?
  • Based on recent results, scores on the SAT test are normally distributed with a mean of 1652 and a standard deviation of 212. What is the probability that a randomly selected student has a SAT score greater than 1750?
  • Which of these correlation numbers shows the strongest relationship?
  • In how many different unique ways can the letters of the word Statistically be arranged?
  • Six sided die is rolled six times. What is the or probability that the die will show an even number exactly 2 times?
  • Three numbers have a mean of 8. If we add a 4th number, the mean is now 7. What number was added?
  • Find five numbers so that the mean, median, mode and range are all 4?