Data & Probability - Challenge Level - 20 Questions
Answer: 0
Average = (2 + 3 + 1) ÷ 3 = 6 ÷ 3 = 2 inches.
Answer: 4
Range = highest - lowest = 54 - 50 = 4.
Answer: 0
Bar graphs are better for categories. Line plots are better for numerical data.
Answer: 5
Total 20. Soccer + Basketball = 15. Baseball = 20 - 15 = 5.
Answer: True
True! 1/3 ≈ 33% is less than 50%, so unlikely but still possible.
Answer: 30
80 - 50 = 30 more tickets on Saturday.
Answer: 0
NOT green = orange + purple = 2 + 3 = 5 out of 10 = 5/10 = 1/2.
Answer: 9
Age 9 appears 4 times. Age 8 appears 3 times, age 10 once.
Answer: 0
Green has only 1/6, while blue has 3/6 and red has 2/6. Smallest = least likely!
Answer: True
True! Each roll is independent. Past rolls don't affect future ones.
Answer: 7/10
7 sharpened out of 10 total = 7/10 = 70% chance.
Answer: decreasing
70 → 68 → 65 → 63 shows temperature going down (decreasing/cooling).
Answer: 0
40% = 0.40 and 0.6 = 60%. Since 0.6 > 0.4, Event B is more likely!
Answer: 5
5 has the most X's (4), making it the mode.
Answer: True
True! Steady growth = consistent positive improvement over time.
Answer: 15
Pattern adds 3: 2, 5, 8, 11, 14, 17. The 15 should be 14!
Answer: 0
Red and Green both have 12 (equal). Blue has most with 18.
Answer: 8/12
8 even out of 12 total = 8/12 = 2/3 ≈ 67%.
Answer: 40
Pattern increases by 10 each week: 10, 20, 30, 40. Linear growth!
Answer: 0
'Certain' means very high probability, close to 100%. 95% is closest to certain!
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