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Math Help - Intervals

  1. #1
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    Intervals

    A number is to be selected at random from the interval [ 6.5, 9.7]. What is the probability that the number selected will be the interval [6.5, 7.3]. Can someone help me set up and solve this problem?
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  2. #2
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    Re: Intervals

    Quote Originally Posted by talanih View Post
    A number is to be selected at random from the interval [ 6.5, 9.7]. What is the probability that the number selected will be in the interval [6.5, 7.3]. Can someone help me set up and solve this problem?

    This is a uniform distribution.

    I think you have left the word in.

    The probability is the measure of the subset divided by the measure of the superset.

    Please post your answer.
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  3. #3
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    Re: Intervals

    thank you. I am confused as to how I set that up. Do I divide 9.7 by 7.3?
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  4. #4
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    Re: Intervals

    Quote Originally Posted by talanih View Post
    thank you. I am confused as to how I set that up. Do I divide 9.7 by 7.3?
    Reread my reply. It tells you that \frac{7.3-6.5}{9.7-6.5} is the answer.
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