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30 Oct 2021

Given information

The rolling six-sided die with:

 = probability of success (event  occurs)

 = probability of failure (event  does not occur)

Number of times we need to roll the die in order to obtain the first four or five as the outcome is the interest.

 

Step-by-step explanation

Step 1.

Random variable  is defined as below:

Number of times you need to roll the die in order to get face four or five.

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Introductory Statistics
OER Edition, 2013
Openstax
ISBN: 9781938168208

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