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Fed [463]
3 years ago
12

What's the probability of obtaining a 3 digit number at random which is DIVISIBLE by 7 ​

Mathematics
1 answer:
pochemuha3 years ago
6 0

Answer:

  32/225 ≈ 0.1422

Step-by-step explanation:

If you consider "3-digit" numbers to be between 100 and 999, inclusive, there are 128 such numbers divisible by 7. The probability of choosing one at random is ...

  128/900 = 32/225 = 0.1422...(repeating)

__

If you consider all non-negative integers less than 1000 to be "3-digit numbers," then the probability is ...

  142/1000 = 0.142 (exactly)

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