SOLUTION: if you roll a die, what is the probability of getting a.an odd number or a 4 b. a 3 or a prime number

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Question 1179905: if you roll a die, what is the probability of getting
a.an odd number or a 4
b. a 3 or a prime number
Answer by ikleyn(52798) About Me  (Show Source):
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(a)  There are 6 possible outcomes; of them, the favorable are { 1, 3, 4, 5 }.


     Four favorable of total 6 give the probability of  4%2F6 = 2%2F3.




(b)  Of 6 possible outcomes, there are 3 favorable  {2, 3, 5 }.


     The probability is  3%2F6 = 1%2F2.

Solved, answered and explained.