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Filename: controllers/calculator.php

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(Since there are ‘2’ sides of a coin and it is tossed ‘5’ times)

To get exactly ‘2’ heads, the following are the possibilities:

So when a coin is tossed ‘5’ times, there can be exactly ‘2’ heads ‘10’ times!

Probability, P = (Number of possible outcomes)/ (Total number of outcomes)

(Since there are ‘2’ sides of a coin and it is tossed ‘3’ times)

To get at least 2 heads, the following are the possibilities:

So when a coin is tossed ‘3’ times, there can be at least ‘2’ heads ‘4’ times!

Probability, P = (Number of possible outcomes)/ (Total number of outcomes)