chrissmith528 chrissmith528
  • 18-06-2017
  • Mathematics
contestada

I have filled a bag with differently colored ping-pong balls. There are twenty balls in the bag. Twelve are white, six are orange and two are pink. When I draw a ball from the bag, I remove it. What is the probability that my first draw is a white ball and my second is not?

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jbmow
jbmow jbmow
  • 18-06-2017
White = 12/20 or 3/5 or 0,6
Not White = 8/19
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