lydlover
lydlover lydlover
  • 03-04-2018
  • Mathematics
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find the probability of rolling a prime number on a dice

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ali015
ali015 ali015
  • 03-04-2018
A dice has numbers 1 through 6. Prime numbers are numbers that cannot be divided by anything except itself and one. Remember that 1 is not a prime number.

That means the numbers on a dice that are prime are: 2, 3, and 5. That means 3 out of the 6 numbers are prime, so the probability of rolling a prime number, since all sides have the same chance of being rolled is:
[tex] \frac{3}{6} = \frac{1}{2} [/tex]

Your answer is 1/2 probability of rolling a prime. 
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