A LITTLE LIGHTBULB MOMENT
Quantitative reasoning
Favorable over total
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Probability counts party guests, then checks fairness.
The idea behind the cue
For equally likely outcomes, probability is favorable outcomes divided by total outcomes.
Practice this flashcard →Make it memorable
Short & simple
Probability counts party guests, then checks fairness.
Acronym
FT: Favorable / Total, when equally likely.
Story
A fair die hosts six equally likely guests; the even-number guests occupy three seats.
Connect the pieces
- Favorable → outcomes in the event
- Total → all equally likely outcomes
Know the limits
Do not use simple counts when outcomes have unequal probabilities.
OpenStax · contemporary-mathematics (reference) ↗Check your understanding
For a fair six-sided die, the probability of an even result is:
A. 1/2
B. 1/6
C. 2/3
D. 1
Reveal explanation
1/2
For equally likely outcomes, probability is favorable outcomes divided by total outcomes.