Data Probability Intro: 1000 Gamified Levels
Statistics 进阶: 1000 levels of 10 questions; compute or predict before revealing, with points, ranks and a share card. Intermediate statistics uses classical probability; count favorable outcomes before reducing. For each probability, write the sample space and the event before counting favorable outcomes.
1000levels
10questions / level
0completed
0points
0streak
0due today
Loading 1000 levels…
1000-level map
Levels unlock in order; clearing one unlocks the next. Points can also unlock the next level.
Why these 1000 levels work
- Compute or predict before choosing.
- Ten questions per level; the next unlocks on clear.
- Review misses on the forgetting curve.
Ten questions per level; clearing a level schedules reviews at 1/3/7/14/30/60/120 days. Points can unlock the next level; ranks rise with completed levels.
FAQ
Do questions repeat?
Yes, items recur for spaced review; the bank will grow.
How are points used?
50 points unlock the next level; clearing also unlocks it.
LEVEL CLEAR
过关！
1关卡
10/10正确
+20积分