anonymous
  • anonymous
What is the probabiltiy that you will spin a spinner numbered 1-6 and get a 4 three times in a row??
Mathematics
katieb
  • katieb
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anonymous
  • anonymous
1/6 for one time 1/12 for two 1/18 for three
anonymous
  • anonymous
please medal
anonymous
  • anonymous
I am confused Help

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campbell_st
  • campbell_st
P(4) = 1/6 so the probability of a 4 three times P(4, 4, 4) = 1/6 x 1/6 x 1/6 =1/216
anonymous
  • anonymous
That is so not right
anonymous
  • anonymous
ok i will explain better out of 6 numbers one is a 4so one spin to land on 4 would be a 1/6 (one out of six chance) then you get two spins which means the 6 numbers get doubled so now you have a one out of 12 chance to hit four again but you want three spins in a row to land on four so you add another six which now makes your chances of spinning a 4 three times in a row one in 18 or 1/18
campbell_st
  • campbell_st
actually it is right... each spin is independent of the next. draw a tree diagram to represent each spin|dw:1336077609050:dw|
anonymous
  • anonymous
Two confuseing cambell thanks other kid
anonymous
  • anonymous
i try to make things simple no prob
campbell_st
  • campbell_st
well good luck snow... as that solution is incorrect... but its your choice... well countonme... what are the possible outcomes in the sample space... can you list them
anonymous
  • anonymous
im sorry but i dont know what you are talking about
anonymous
  • anonymous
another explanation: a probability of an event = (nº of positive posibilities)/(nº of all posibilities) nº of all posibilities is 6^3=216 nº of wanted outcomes = 1 (is the 4,4,4) so the probability is 1/216
anonymous
  • anonymous
ah my bad i added not multiply sorry he is right^
campbell_st
  • campbell_st
lol.... what are you 18 outcomes... to get 1/18
anonymous
  • anonymous
lol right

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