anonymous
  • anonymous
please help with some questions :)
Mathematics
jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
anonymous
  • anonymous
anonymous
  • anonymous
a standard deck of cards has 52 cards. we have 4 kings, 2 of them are balck and 2 of them are red. what is the probability of pulling a black card?

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anonymous
  • anonymous
please answer quickly :)
Michele_Laino
  • Michele_Laino
we have 13 black cards, so the requested probability is: \(favorable\;outcomes/possible\;outcomes=...?\)
anonymous
  • anonymous
i dont know how to do that :(
Michele_Laino
  • Michele_Laino
favorable outcomes=13, possible outcomes=52, so probability=13/52=...?
anonymous
  • anonymous
0.25
Michele_Laino
  • Michele_Laino
ok! it is \(25\%\)
Michele_Laino
  • Michele_Laino
please wait a moment
anonymous
  • anonymous
would that question be experimental or theoretical ? @Michele_Laino
anonymous
  • anonymous
Michele_Laino
  • Michele_Laino
I think theoretical
anonymous
  • anonymous
ok next!
anonymous
  • anonymous
lets say i ask you topull a black king out of the deck of cards, and you keep it, then i ask you to pull another black card, would the second pull be independent or dependent?
Michele_Laino
  • Michele_Laino
the probability to get a black king is 2/52=...? If, after the first draw, I put the card into the deck, then the the first draw and the second draw, are independent events
anonymous
  • anonymous
next!
anonymous
  • anonymous
give me an example of an impossible event
Michele_Laino
  • Michele_Laino
an impossible event is to get number seven throwing a dice
anonymous
  • anonymous
next!
Michele_Laino
  • Michele_Laino
please wait a moment
anonymous
  • anonymous
What is the probability of landing on heads on the 200 th flip on a coin? @Michele_Laino

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