Treasure Inspiration
← Probability & Statistics

Mathematics · Beginner lesson

Chances & Averages

Build the core idea from scratch with gentle steps and lots of hints.

5

Questions

~4

Minutes

3

Hints/Q

Confidence tracking, 3-tier hints and instant feedback.

What you'll learn

  • 1Probability is 0 to 1.
  • 2Mean = sum ÷ count.
  • 3Mode = most common.
  • 4Median = middle.

Question mix

  • Fill the gap×5

How it works

Score ≥ 80% to unlock the next level
  • 1

    Rate your confidence

    Tell us how sure you feel before answering. It powers your weak-topic map.

  • 2

    Use hints if stuck

    Reveal up to 3 progressive hints per question. Using fewer earns more points.

  • 3

    See what went wrong

    Instant feedback solves the exact question you just answered, so nothing stays fuzzy.

Ready when you are. This takes about 4 minutes.