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ivan learned 15 out of 20 questions what is the probability that the student got a question he did not learn

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Ivan learned 15 out of 20 questions. What is the probability that the student got a question he did not learn?

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Answer to a math question Ivan learned 15 out of 20 questions. What is the probability that the student got a question he did not learn?

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107 Answers

- Ivan je naučio 15 pitanja od 20, tako da je broj pitanja koja nije naučio

20 - 15 = 5

.
- Ukupan broj pitanja je 20.
- Vjerojatnost da je Ivan dobio pitanje koje nije naučio iznosi

\frac{5}{20}

.
- Jednostavnim deljenjem dobijamo vjerojatnost:

\frac{5}{20} = \frac{1}{4}

.

Odgovor je:

\frac{1}{4}

.

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