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Math Help - independant events

  1. #1
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    independant events

    The probability of scoring more than 90% on a certain end of year exam is 0.009.

    Given the events are independant, find the probability of two tests scoring more than 90%.

    Is it simply 0.009 x 0.009 = 0.000081?
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  2. #2
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    Re: independant events

    1) Who's getting the credit for these scores? Never mind...

    2) Definition of independence p(A and B) = P(A) and P(B). I think you have it.
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  3. #3
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    Re: independant events

    Quote Originally Posted by TKHunny View Post
    1) Who's getting the credit for these scores? Never mind...
    Well it's more of a check that i'm on the right track. I think the wording of the question just threw me a bit.

    Thanks for the confirmation
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  4. #4
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    Re: independant events

    No worries. I was making fun of the wording, not your attitude.

    Consult those defintions. They WILL save you!
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