Tcareyoliver
07.07.2019 •
Mathematics
Balls numbered from 1 to 38 are placed in a contianer and stirred. if one is drawn at random what is the probability that the number is a prime number?
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Ответ:
The primes in the range 1–38 are ...
... 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37
There are 12 of them, so the probability of drawing a prime is
... 12/38 = 6/19
Ответ:
Are you familiar with that?