Back to Understand independence via the product rule — Problem 1 · Task Set 19

Exercises: Understand Independence Through the Product Rule

Work through each section in order. For independence tests, compute P(A)P(A), P(B)P(B), and P(A and B)P(A \text{ and } B), then compare P(A and B)P(A \text{ and } B) to the product P(A)P(B)P(A) \cdot P(B). For explanation problems, write in complete sentences.

Grade 10·21 problems·~35 min·Common Core Math - HS Statistics and Probability·group·hss-cp-a-2
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Warm-Up: Probability Foundations

These problems review skills you already know.

1.

A fair coin is flipped twice. Listing the sample space {HH,HT,TH,TT}\{HH, HT, TH, TT\}, what is P(both heads)P(\text{both heads})? Express your answer as a fraction.