The probability of unboxing a mythical item is 3%. All of the probability information is shown on the box menu screen. To clarify about the mythical probabilities:

You can calculate the chance of *not* getting a mythical in a certain number of boxes by taking the chance of *not* getting a mythical to the power of the number of boxes. Since the chance of getting a mythical is 3% we know the chance of *not* getting a mythical is 97%. You can then subtract that from 100% to get the chance of getting a mythical in a certain number of boxes.

Here is an example:

Mythical chance percentage = 3%

Non-mythical chance percentage = 100% - 3% = 97%

Non-mythical chance fraction = 97 / 100 = 0.97

Number of boxes = 10

Chance of non-mythical fraction = 0.97 ^ 10 = 0.74

Chance of non-mythical percentage = 0.74 * 100 = 74%

Chance of mythical percentage = 100% - 74% = 26%

I am no mathematician / statistician. My goal with this article is to help convey that for example 100 boxes does not guarantee 3 mythical items.

Examples table of the chance of getting one mythical in a certain number of boxes:

Number of boxes | Probability of a mythical item (rounded down) |

1 | 3% |

3 | 8% |

5 | 14% |

12 | 30% |

25 | 53% |

30 | 59% |

50 | 78% |

75 | 89% |

100 | 95% |

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