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Math Help - Probability

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    Newbie leibnitz's Avatar
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    Talking Probability

    Pls Fans i need ur help in this mathematical problem.............A number is chosen at random from the number 1 to 30 inclusive.What is the probability that the number will be divisible by 5?
    THANKS FOR UR AID
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  2. #2
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    Re: Probability

    what's the probability of picking any number?

    how many ways can you pick a number divisible by 5

    multiply
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  3. #3
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    Re: Probability

    Quote Originally Posted by leibnitz View Post
    Pls Fans i need ur help in this mathematical problem.............A number is chosen at random from the number 1 to 30 inclusive.What is the probability that the number will be divisible by 5?
    Here is a vocabulary lesson.
    If one says "integers from one to thirty" means 1\le n\le 30.
    If one says "integers between one to thirty" means 1< n< 30.

    Now to answer question is: \frac{{\left\lfloor {\frac{{30}}{5}} \right\rfloor }}{{30}} = \frac{1}{5}
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