The Probability Scale
Slide to place the event on the scale.
🔴
🔵
What is the probability of picking a Red Marble?
0Impossible
Unlikely
Equal
Likely
1Certain
Spot on! 🎉
Finding Favorable Outcomes
Tap to count.
Tap all the {{ step2.targetEmoji }} to find the favorable outcomes.
Favorable
{{ step2.selectedCount }}
Total Outcomes
{{ step2.items.length }}
Great counting! 🌟
Build the Probability
Drag to build the fraction.
{{ step3.scenario.emoji }}
{{ step3.scenario.text }}
{{ num }}
P =
Favorable
{{ step3.num }}
{{ step3.den }}
Total
Design a Garden
Tap to plant.
Plant flowers so the probability of picking a 🌻 is
Total spots: 8
Beautiful garden! 🌸
🏆
You did it!
You've mastered the basics of probability. Remember, it's always a number between 0 (impossible) and 1 (certain)!