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by BlastRoom
Mixed practice across the summaries unit: center, spread, the five-number summary, box plots, outliers, standard deviation and percentiles.
#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.
The numbers of buses arriving late at a depot on seven days were 6, 2, 10, 3, 1, 4, and 2. What is the median number late?
A cafe tracked cups of soup sold over five lunch periods: 5, 6, 6, 9, and 14. What is the mean cups sold?
A school nurse recorded daily visits as 12, 15, 12, 18, 20, 12, and 15. What is the mode number of visits?
Six plant heights in centimeters are 18, 24, 20, 31, 27, and 21. What is the median height?
A lab group measured sample masses of 46, 51, 48, 47, and 53 grams. What is the mean mass?
The numbers of books checked out during six library hours were 4, 7, 5, 9, 6, and 8. What is the mode?
A town's household incomes are strongly skewed right because a few homes have very high incomes. What center best describes a typical household?
A biology class's plant heights are roughly symmetric with no unusual values. What center should summarize the typical height?
A coach summarizes race times after one runner was much slower because of a fall. What center is least affected by that unusual slow time?
Students reported favorite review-game categories, not numbers. What measure of center can summarize the most common category?
For 12, 15, 15, 18, 22, 27, 31, and 44, Q1 = 15 and Q3 = 29. What are the range and interquartile range?
For the values 4, 7, 9, 10, 13, and 16, Q1 = 7 and Q3 = 13. What are the range and IQR?
A clinic recorded wait times of 21, 22, 25, 28, 29, 35, and 40 minutes. Q1 = 22 and Q3 = 35. What are the range and IQR?
Puzzle finish times have a minimum of 3 minutes, Q1 = 8, median = 10, Q3 = 17, and maximum of 22. What are the range and IQR?
For the values 6, 8, 10, 10, 12, 15, 19, and 21, Q1 = 9 and Q3 = 17. What are the range and IQR?
A data set is 3, 5, 6, 8, 11, 13, 14, 18, and 20. What is its five-number summary?
A data set is 2, 4, 7, 9, 10, 12, 15, and 18. What is its five-number summary?
Seven battery lives in hours are 14, 16, 16, 19, 21, 22, and 25. What is the five-number summary?
Ten exam scores are 31, 34, 35, 38, 42, 45, 47, 50, 52, and 55. What is the five-number summary?
A box plot of weekly work hours is shown. About what share worked within the interval represented by the box?
The figure shows a box plot of backpack masses measured in kg. What is the IQR?
A labeled box plot shows quiz scores. What is the range?
The box plot gives commute times in minutes. What is the median?
Use the box plot of cafeteria sales in dollars. What interval contains the middle 50%?
A data set has Q1 = 24, Q3 = 40, and a largest value of 68. Using the 1.5 times IQR rule, is 68 an outlier?
A data set has Q1 = 10, Q3 = 18, and a smallest value of -1. Using the 1.5 times IQR rule, is -1 a low outlier?
A data set has Q1 = 32, Q3 = 44, and a largest value of 60. Using the 1.5 times IQR rule, is 60 a high outlier?
A data set has Q1 = 50, Q3 = 70, and a smallest value of 18. Using the 1.5 times IQR rule, is 18 a low outlier?
The values 4, 6, 8, 10, and 12 have mean 8. What is the sample standard deviation, to two decimals?
The values 3, 5, 5, and 7 have mean 5. What is the sample variance, to two decimals?
The values 10, 12, 14, 16, and 18 are a whole population with mean 14. What is the population standard deviation, to two decimals?
The values 20, 22, 23, 25, and 30 have mean 24. What is the sample standard deviation, to two decimals?
Two machines fill 250 mL bottles. Machine A's fills have standard deviation 1.2 mL, and machine B's fills have standard deviation 4.8 mL. What does this show?
The box plots show scores for team A and team B. How should the distributions be compared?
The box plots show checkout times at store X and store Y. How do the distributions compare?
The box plots show exam scores for class A and class B. What comparison is supported?
A runner's time in a 5K race is at the 20th percentile of the 300 finishers' times. What does that mean?
On a math exam, Q3 is 86 points for 120 students. What does Q3 = 86 mean?
A course grade is 40% tests, 35% projects, and 25% homework. A student scores 78 on tests, 92 on projects, and 100 on homework. What is the weighted mean, to one decimal?
A science grade is 60% exams, 25% lab work, and 15% homework. A student scores 84 on exams, 90 on lab work, and 76 on homework. What is the weighted mean, to one decimal?
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.
Two-Variable Data Unit Review
40 questions
