ashleewilson3385 ashleewilson3385
  • 23-02-2021
  • Mathematics
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A fair 10 sided die rolled until a 7 is first seen. What is the probability of rolling the die six times?

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podgorica podgorica
  • 24-02-2021

Answer:

The probability of rolling a dice six time until a 7 is first seen is 0.059

Step-by-step explanation:

The probability of getting a seven is equal to [tex]\frac{1}{10}[/tex]

The dice need to be rolled only six times.

This means that for the first 5 times the dice showed values other than 7 and in the last roll it displays 7

Hence the probability of rolling a dice six time until a 7 is first seen is

[tex](\frac{9}{10})^5 * (\frac{1}{10})^1[/tex]

[tex]= \frac{9^5}{10^6} \\= 5.90[/tex] % or 0.059

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