Question

FAN AND MEDAL!

Answer 1

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

Answer 2

@Hero @triciaal

Answer 3

@DanJS

Answer 4

@geny55

Answer 5

@heretohelpalways @ali2x2

Answer 6

help

Answer 7

need help

Answer 8

@heretohelpalways @mathway

Answer 9

100%-(35%-20%-30%)= ?

Answer 10

1.15

Answer 11

@amoodarya

Answer 12

30 % fr
35 % am
20% ger
? other ?

Answer 13

15%?

Answer 14

ok . let's go on

Answer 15

what is the probability that one person is not from other countries ?

Answer 16

i have no idea

Answer 17

for one person =100%-15%

Answer 18

for one person p(a)=0.85
for 3 person p(a)*p(a)*p(a)=0.85 ^3 =0.61

Answer 19

so
number of "what you want" =.61 *250 =150