by BlastRoom
Applying the fence rule to decide whether a value is an outlier, and finding the fences themselves.
#probability_and_statistics

40 questions
One question set, multiple game modes. Tap any game to see it in action. Not sure which to pick?
Answer to place stones and capture territory.
Outrun the snow together.
Earn blasts, then hunt the other team.
Answer to earn energy, then climb.

The class blasts through walls together.
Bid on mystery lots. Most money wins.
Sell tours. Nice, standard, or a total scam.
Answer, restock, and serve the rush.
More correct answers pulls the rope your way.
Answer, then shoot down the alien wave.
Answer, then tap to leap the frozen ridge.
At a weather station, daily rainfall totals have first quartile 12 mm and third quartile 28 mm. Using the 1.5 times IQR rule, what are the lower and upper fences?
For student bus commute times, the first quartile is 18 minutes and the third quartile is 30 minutes. Build the lower and upper fences using the 1.5 times IQR rule.
Library book masses have first quartile 0.4 kg and third quartile 1.0 kg. According to the 1.5 times IQR rule, what fence pair should be used?
A biology class measures plant heights with first quartile 22 cm and third quartile 34 cm. What are the lower and upper fences for the 1.5 times IQR rule?
In a lab, reaction times have first quartile 45 seconds and third quartile 65 seconds. Find the lower and upper fences using the 1.5 times IQR rule.
Cafeteria lunch tray masses have first quartile 320 g and third quartile 410 g. Which lower and upper fences come from the 1.5 times IQR rule?
Trail race split times have first quartile 6 minutes and third quartile 10 minutes. What are the 1.5 times IQR lower and upper fences?
Water bottle fill volumes have first quartile 480 mL and third quartile 620 mL. Use the 1.5 times IQR rule to find both fences.
Battery lifetimes have first quartile 3.2 hours and third quartile 5.6 hours. What lower and upper fences does the 1.5 times IQR rule produce?
Exam completion times have first quartile 38 minutes and third quartile 50 minutes. Calculate the lower and upper fences for the 1.5 times IQR rule.
A swim team records lap times, in seconds: 32, 34, 35, 36, 37, 38, 40, 41, 58. Using the 1.5 times IQR rule, with quartiles found by leaving out the median, is 58 seconds flagged?
A teacher records quiz scores: 42, 55, 58, 60, 63, 65, 67. Using the 1.5 times IQR rule, with quartiles found by leaving out the median, is the score 42 flagged?
A farm weighs tomatoes, in grams: 82, 88, 91, 94, 96, 99, 101, 105, 130. Using the 1.5 times IQR rule, with quartiles found by leaving out the median, is 130 g flagged?
Students weigh backpacks, in kilograms: 2.1, 2.4, 2.5, 2.7, 2.8, 3.0, 3.1, 3.9. Using the 1.5 times IQR rule, is 3.9 kg flagged?
A science class tracks seed germination days: 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 15. Using the 1.5 times IQR rule, with quartiles found by leaving out the median, is 15 days flagged?
A bottling line records fill volumes, in mL: 491, 493, 495, 496, 498, 499, 501, 503, 504, 512. Using the 1.5 times IQR rule, is 512 mL flagged?
Cyclists record distances, in kilometers: 3, 11, 12, 13, 14, 15, 16, 17, 18. Using the 1.5 times IQR rule, with quartiles found by leaving out the median, is 3 km flagged?
A classroom measures plant heights, in cm: 14, 15, 16, 17, 18, 19, 20, 28. Using the 1.5 times IQR rule, is 28 cm flagged?
A repair shop records service times, in minutes: 12, 14, 15, 16, 18, 19, 25. Using the 1.5 times IQR rule, with quartiles found by leaving out the median, is 25 minutes flagged?
A soil lab records moisture percentages: 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 35. Using the 1.5 times IQR rule, with quartiles found by leaving out the median, is 35% flagged?
Clinic wait times, in minutes, have five-number summary 4, 8, 12, 18, 40. Using the 1.5 times IQR rule, how is the longest wait of 40 minutes classified?
Student commute distances, in kilometers, have five-number summary 1, 5, 7, 11, 19. Using the 1.5 times IQR rule, how is the longest commute of 19 km classified?
Machine bolt lengths, in millimeters, have five-number summary 48, 49, 50, 51, 55. Using the 1.5 times IQR rule, how is the longest bolt of 55 mm classified?
Park tree ages, in years, have five-number summary 2, 8, 11, 15, 25. Using the 1.5 times IQR rule, how is the oldest tree of 25 years classified?
Backpack masses, in kilograms, have five-number summary 0.9, 2.5, 3.0, 3.4, 4.2. Using the 1.5 times IQR rule, how is the lightest mass of 0.9 kg classified?
Algae counts, in cells per mL, have five-number summary 12, 18, 20, 26, 38. Using the 1.5 times IQR rule, how is the highest count of 38 cells per mL classified?
Delivery package masses, in kilograms, have five-number summary 2, 6, 8, 10, 17. Using the 1.5 times IQR rule, how is the heaviest package of 17 kg classified?
Dairy farm milk yields, in liters, have five-number summary 14, 18, 20, 24, 32. Using the 1.5 times IQR rule, how is the largest yield of 32 liters classified?
Nitrate levels, in mg/L, have five-number summary 1, 3, 4, 6, 11. Using the 1.5 times IQR rule, how is the highest level of 11 mg/L classified?
Hikers' water use, in liters, has five-number summary 0.6, 1.0, 1.2, 1.6, 2.5. Using the 1.5 times IQR rule, how is the largest use of 2.5 liters classified?
A gardener measures seedling heights, in centimeters: 11, 12, 12, 13, 14, 15, 16, 34. Applying the 1.5 times IQR rule, which height is flagged?
Students record quiz completion times, in minutes: 5, 12, 13, 14, 15, 16, 17, 18. Using the 1.5 times IQR rule, which time is flagged?
A lab tests battery lifetimes, in hours: 2.0, 2.5, 2.7, 2.8, 3.0, 3.1, 3.2, 4.0. Applying the 1.5 times IQR rule, which lifetime is flagged?
A recycling club weighs paper bundles, in grams: 86, 95, 96, 98, 100, 102, 104, 112. With the 1.5 times IQR rule, which mass is flagged?
A fish hatchery measures fish lengths, in centimeters: 8, 20, 21, 22, 23, 24, 25, 26, 49. Applying the 1.5 times IQR rule, which length or lengths are flagged?
A scooter club logs daily distances, in kilometers: 3, 4, 5, 5, 6, 6, 7, 8, 16. Using the 1.5 times IQR rule, which distance is flagged?
A class records daily rainfall totals, in millimeters: 0, 1, 2, 2, 3, 4, 5, 6. Applying the 1.5 times IQR rule, which total is flagged?
A lab records sample temperatures, in degrees Celsius: 18, 19, 20, 20, 21, 22, 23, 31. Using the 1.5 times IQR rule, which temperature is flagged?
An app team records loading times, in seconds: 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 2.4. Applying the 1.5 times IQR rule, which time is flagged?
A wildlife team weighs bird eggs, in grams: 42, 43, 44, 45, 46, 47, 48, 56. Using the 1.5 times IQR rule, which mass is flagged?
Crack the passcode before the zombies get in.
Answer, then swat bugs for bonus points.
Race through questions at your own speed.
Same question on every screen. Fastest wins.

Pick a tile, answer, hit bonuses and steals.
Comparing Two Distributions
20 questions