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anonymous

  • 5 years ago

Probability.

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  1. anonymous
    • 5 years ago
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  2. amistre64
    • 5 years ago
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    area inner 1 - -------- = chances area outer

  3. amistre64
    • 5 years ago
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    4pi 1 - ---- = 1 - 1/4 = 3/4 = .75 = 75% ? 16pi

  4. amistre64
    • 5 years ago
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    nah... thats the cahnce of the outer lol

  5. amistre64
    • 5 years ago
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    25% chance you hit the inner

  6. anonymous
    • 5 years ago
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    (Area of a circle) = 2(pi)r^2 \[A' = 2\pi(4^{2}) = 32\pi\]\[A" = 2\pi(2^{2}) = 8\pi \] \[{32\pi \over 8\pi} = {100 \over x} \]\\[x = 25\]

  7. amistre64
    • 5 years ago
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    area of a circle = pi r^2 :)

  8. anonymous
    • 5 years ago
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    but what is the probability that it hits the inner?

  9. anonymous
    • 5 years ago
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    the probabilit is 25%

  10. amistre64
    • 5 years ago
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    25%; 1 in 4

  11. anonymous
    • 5 years ago
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    ops, you're right amistre hehe but still works lol

  12. amistre64
    • 5 years ago
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    lol :) got lucky ;)

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spraguer (Moderator)
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is replying to Can someone tell me what button the professor is hitting...

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