Grace Agate

Grace Agate

Concordia University, St. Paul

Statistics teacher | Verified Expert

I am a dedicated educator specializing in Statistics, holding a degree from Concordia University, St. Paul. With a passion for demystifying statistical concepts, I bring a wealth of knowledge to guide students through the intricacies of the subject. My goal is to foster a deeper understanding and appreciation for statistics, making it accessible and enjoyable. Let's embark on a journey of learning and discovery together!


  • Is the median always in the exact middle of a boxplot?
  • What do the minimum, first quartile, median, third quartile, and maximum of a box and whisker plot represent?
  • What is a lack of fit sum of squares analysis?
  • Assume 75% of the AP stats students studied for this test. If 40% of those who studied get an A but only 10% of those who did not study get A, what is the probability that someone who gets an A actually studied for the test?
  • A restaurant offers the possibility of 168 three-course dinners. Each dinner has an appetizer, an entrée, and a dessert. If the number of appetizers decreases from 7 to 5, how many fewer possible three-course dinners can the restaurant offers?
  • A discrete uniform distribution results from recording the final digit of the cell phone number for 3,000 students. In order to be a density curve, what would be the height (or probability) for each of the bars corresponding to the 10 possible outcomes of 0 to 9, inclusive?
  • Assume that a gallon of milk bought at the store goes bad some time in the interval from 5 days to 10 days after purchase. What is the probability that it goes bad less than 4.5 days after purchase?
  • The random variable #x# is known to be uniformly distributed between 1.0 and 1.5. What is #P(1.20<=x<=1.5) #?
  • What is mean and standard deviation of the following data: 2, 4, 7, 10, 12?
  • How many different three-member teams can be formed from six students?
  • Let Y={a,b,c,d,e,f,i,j} and a 4letter word is to be formed without replacement.How many words can be formed if the word must contain both vowels and consonants?
  • If you roll 2 dice with numbers 1 through 6 on the sides, how many total sums could you get adding the numbers together on each face?
  • The probability that Ann passee statistics test is 5/7 and the probability that she passee economic test is 3/7.If the probability of passing at least one course is 6/7,what is the probability that she will pass both test?
  • Two tetrahedral dice with faces marked 1,2,3 and 4 are thrown. The score obtained is the sum of the numbers on the bottom face. Tabulate the probability distribution for the score obtained,how?
  • Of the 30 cars in a parking lot, 12 are blue, 8 are red, 6 are white, and 4 are silver. In simplest form, what are the odds in favor of a red or white car leaving first?
  • The following list gives the number of siblings for each of 13 students: 3, 2, 4, 4, 1, 3, 2, 0, 1, 3, 2, 2, 4. What are the modes of this data set?
  • Jennifer has the following data: 17, 7, 5, #n#. If the mode is 17, what number does #n# have to be?
  • The mean of 3 numbers is 7. The mean of 4 other numbers is 8. The mean of 5 other numbers is 11. What is the mean of all 12 numbers?
  • Suppose Colby rolls the number cube 100 times. About how many times can she expect to roll a 2?
  • Two cards are drawn at random from a standard deck of 52 cards, without replacement. What is the probability that both cards drawn are hearts?