SOLUTION: From the Sample space S={1,2,3,4....,15}, a single number is to be selected at random. Given the following events, find the indicated probability. A: The selected number is eve

Algebra ->  Probability-and-statistics -> SOLUTION: From the Sample space S={1,2,3,4....,15}, a single number is to be selected at random. Given the following events, find the indicated probability. A: The selected number is eve      Log On


   



Question 1202159: From the Sample space S={1,2,3,4....,15}, a single number is to be selected at random. Given the following events, find the indicated probability.
A: The selected number is even
B: The selected number is a multiple of 4.
C: The selected number is a prime number.
P(B and C)=

Answer by math_tutor2020(3817) About Me  (Show Source):
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Answer: 0

Reason:

The number is a multiple of 4.
So we have 4,8,12,16,...
None of those are prime numbers. A prime is a number that has factors of 1 and itself, and no other factors.
Example: 7 is prime because the only factors are 1 and 7.

Therefore, there is no such number that is both prime and a multiple of 4.
P(B and C) = 0 to indicate it is impossible for both events B and C to occur at the same time.