lilai3
  • lilai3
Hi need elp rite now: Wait a sec cuz den i hafta do dis drawing of dis thing...wait...
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
http://en.wikipedia.org/wiki/English_language
saifoo.khan
  • saifoo.khan
Lol^
lilai3
  • lilai3
|dw:1332907327095:dw|

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lilai3
  • lilai3
sorry it's sorta messy and the vertical axis's label's suppose to have # of rolls. and a number cube is rollded 50 times and the results are shown in the graph above.
lilai3
  • lilai3
1) Find the experimental probability of rolling a 2. 2) What is the theoretical probability of rolling a 2? 3) Find the experimental probability of NOT rolling a 2. 4) What is the theoretical probability of NOT rolling a 2? 5) Find the experimental probability of rolling a one.
UnkleRhaukus
  • UnkleRhaukus
so a two has been rolled 8 times in 50 roles \[8/50=4/25=16 \% \] amusing a fair dice we could expect to roll a two 1 in 6 times \[1/6 ~ 16.66\dot %\]
lilai3
  • lilai3
so u answer number 1 and 2 rite? wut about 3 and 4 and 5?
UnkleRhaukus
  • UnkleRhaukus
well a Not two has been rolled \[ 1-8/50 \text{times}= 42/50 = 84\%\] theoretically one should expect a Not two to occur \[5/6 \text{times} =83.3\dot\]
UnkleRhaukus
  • UnkleRhaukus
i mean \[83.3\dot \%\] Try number 5 for your self experimental probability is equal to number of occurrences divided by number of roles
lilai3
  • lilai3
i haf a question: wut's 1-8/50 times? idon't get that 1
lilai3
  • lilai3
nvm, i got it
lilai3
  • lilai3
Is #5: 10/50, or 1/5 simplified?
UnkleRhaukus
  • UnkleRhaukus
um yeah i guess i mean the result has occurred 8 times in a total of 50 roles, but rolls have units of times as well and it should have been canceled out
UnkleRhaukus
  • UnkleRhaukus
yeah that is right ten times in fifty roles is 1/5 = 20% of the the time

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