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xxScarlett

There are 20 students in a class. 12 are girls, 8 are boys. 3 girls like to play softball, 4 boys like to play softball. Find the probability of picking two students from the class and choosing a girl or a softball player. Explain your work.

  • 2 years ago
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  1. iCanHelp
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    Girls 12/20 and Softball Players: 7/20

    • 2 years ago
  2. xxScarlett
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    Since this is a dependent event, shouldn't I multiply both 12/20 and 7/20 to get 21/100?

    • 2 years ago
  3. philips13
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    A = choosing a girl B = choosing a softball player since they are not mutually exclusive events: P(AorB) = P(A) + P(B) - P(AandB) = P(A) + P(B) - P(A)P(B)

    • 2 years ago
  4. phi
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    |dw:1332708681526:dw|

    • 2 years ago
  5. phi
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    That is using pictures to show the sample space

    • 2 years ago
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