CURRICULUM

Math Statistics: Four Difficulties, 4000 Levels

Math Statistics has four difficulties with 1000 levels each and ten questions per level; stabilize accuracy before moving up. 统计概率看数据与不确定性；先确认指标或事件再计算。 Statistics levels cover mean, median, variance and classical probability; the emphasis is on choosing the right denominator and event.

统计基础Statistics Basics1000 关概率入门Probability Intro1000 关统计进阶Statistics Advanced1000 关统计挑战Statistics Challenge1000 关

How it works

  1. Start at the lowest difficulty.
  2. Ten questions per level; clear one to unlock the next.
  3. Review at 1/3/7/14/30 days.

FAQ

Which difficulty?

Start at basic and move up when accuracy stays above 80%.

How many levels each?

1000.