Mrs.D Math · 7th Grade
CHAIN
REACTION
⛓️ Compound Probability
🔗 Independent Events
🎯 Dependent Events
Made for Mrs.D Math students 🎉
Two events are independent if the outcome of one does NOT affect the other (like flipping a coin twice, or drawing a marble and replacing it).
Example: P(heads) × P(rolling a 3) = 1/2 × 1/6 = 1/12
Two events are dependent if the outcome of the first DOES affect the second (like drawing marbles without replacing them).
Example: Bag has 3 red, 2 blue. Draw red then blue (no replace):
P = 3/5 × 2/4 = 6/20 = 3/10
• 10 questions, 3 lives ❤️❤️❤️
• Fraction questions: Type the numerator and denominator, then press CHECK. Reduce to lowest terms!
• Decimal/Percent questions: Pick the best answer from 4 choices.
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