anonymous
  • anonymous
FAN AND MEDAL!
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
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
anonymous
  • anonymous
@Hero @triciaal
anonymous
  • anonymous
@DanJS

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anonymous
  • anonymous
@geny55
anonymous
  • anonymous
@heretohelpalways @ali2x2
anonymous
  • anonymous
help
anonymous
  • anonymous
need help
anonymous
  • anonymous
@heretohelpalways @mathway
anonymous
  • anonymous
|dw:1438901250450:dw|
amoodarya
  • amoodarya
100%-(35%-20%-30%)= ?
anonymous
  • anonymous
1.15
anonymous
  • anonymous
@amoodarya
amoodarya
  • amoodarya
30 % fr 35 % am 20% ger ? other ?
anonymous
  • anonymous
15%?
amoodarya
  • amoodarya
ok . let's go on
amoodarya
  • amoodarya
what is the probability that one person is not from other countries ?
anonymous
  • anonymous
i have no idea
amoodarya
  • amoodarya
for one person =100%-15%
amoodarya
  • amoodarya
for one person p(a)=0.85 for 3 person p(a)*p(a)*p(a)=0.85 ^3 =0.61
amoodarya
  • amoodarya
so number of "what you want" =.61 *250 =150

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