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order

  • 4 years ago

A game is played by throwing a fair dice until either a six is obtained or four throws have been made. The number of sixes obtained in the game is denoted by Y. Find EY (or the mean of the frequencies ~ Expectation in statistics)

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  1. jesusisrisen
    • 4 years ago
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    ey=1/2 for 6 and 1/3 for 4?

  2. order
    • 4 years ago
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    Nope. This is under Varience and standard deviation and Expectation... so there are a lot more steps involved.. It's not easy. So if anyone knows how to solve this... I'll be very greatful. Thanks for trying though :) But It's not as straightforward as that.

  3. jesusisrisen
    • 4 years ago
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    but it also has to do with how many dice r being played

  4. order
    • 4 years ago
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    Only one set of dice, rolled numerous amounts of times... It also has to do with Geographic & binomial distribution... All 4 things combined... not easy

  5. order
    • 4 years ago
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    I mean one die

  6. jesusisrisen
    • 4 years ago
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    wat type of math is this?

  7. order
    • 4 years ago
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    It's statistics 1 for A-levels

  8. jesusisrisen
    • 4 years ago
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    oh probability?

  9. order
    • 4 years ago
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    yup, and measures of spread.

  10. jesusisrisen
    • 4 years ago
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    wouldnt it be division to find out how many times thrown to the actual number

  11. order
    • 4 years ago
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    Nope.. It'll be to find the distribution of Y (the hard part) and then to get the expectation, which is much easier.

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