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anonymous

  • one year ago

FAN AND MEDAL!

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  1. anonymous
    • one year ago
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    At a conference of 250 people, 30% of the participants are French, 35% are Americans, 20% are Germans, and the rest are of other nationalities. Among any 3 participants, what is the probability that they are not all from other countries? 50 75 150 175

  2. anonymous
    • one year ago
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    @Hero @triciaal

  3. anonymous
    • one year ago
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    @DanJS

  4. anonymous
    • one year ago
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    @geny55

  5. anonymous
    • one year ago
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    @heretohelpalways @ali2x2

  6. anonymous
    • one year ago
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    help

  7. anonymous
    • one year ago
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    need help

  8. anonymous
    • one year ago
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    @heretohelpalways @mathway

  9. anonymous
    • one year ago
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    |dw:1438901250450:dw|

  10. amoodarya
    • one year ago
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    100%-(35%-20%-30%)= ?

  11. anonymous
    • one year ago
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    1.15

  12. anonymous
    • one year ago
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    @amoodarya

  13. amoodarya
    • one year ago
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    30 % fr 35 % am 20% ger ? other ?

  14. anonymous
    • one year ago
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    15%?

  15. amoodarya
    • one year ago
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    ok . let's go on

  16. amoodarya
    • one year ago
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    what is the probability that one person is not from other countries ?

  17. anonymous
    • one year ago
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    i have no idea

  18. amoodarya
    • one year ago
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    for one person =100%-15%

  19. amoodarya
    • one year ago
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    for one person p(a)=0.85 for 3 person p(a)*p(a)*p(a)=0.85 ^3 =0.61

  20. amoodarya
    • one year ago
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    so number of "what you want" =.61 *250 =150

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