I have near to no knowledge of statistics, and I want to build a statistical model that can help me calculate %chance of an event happening in situations of type:(adsbygoogle = window.adsbygoogle || []).push({});

every try has 25% success rate

after 6 tries, what are the probabilities of having succeeded at least 5times? After 12tries?

or

each shot has 42% success rate

after 5 tries, how what are the probabilities of succeding at least 4times?

How can I calculate probabilities like these?

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# Building a statistical model

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