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Kagome_gurl8

  • 2 years ago

Suppose Q and R are independent events. Find P (Q and R) P(Q)=2/5, P(R)=3/7

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  1. satellite73
    • 2 years ago
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    if they are independent, then \[P(Q\cap R)=P(Q)\times P(R)\]

  2. satellite73
    • 2 years ago
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    in other words, multiply the two probabilities

  3. Kagome_gurl8
    • 2 years ago
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    I tried and keep getting .92

  4. RolyPoly
    • 2 years ago
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    \[\frac{2}{5} \times \frac{3}{7} \ne 0.92\]...

  5. satellite73
    • 2 years ago
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    \[\frac{2}{5}\times \frac{3}{7}=\frac{6}{35}\]

  6. Kagome_gurl8
    • 2 years ago
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    Oh, thank you :D Would you mind helping me on one more problem?

  7. Kagome_gurl8
    • 2 years ago
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    @satellite73

  8. Kagome_gurl8
    • 2 years ago
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    P(Q)=1/3, P(R)=1/10

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