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Math Help - Estimating the number of 'defectives' in a sample.

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    Estimating the number of 'defectives' in a sample.

    A container holds 20 bars of chocolate with raisins and nuts.A bar of chocolate is picked at random from the container.The probability of picking a bar chocolate with raisins is \frac{3}{5}.How many bars of chocolate with nuts are there in the container..?
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    Quote Originally Posted by mastermin346 View Post
    A container holds 20 bars of chocolate with raisins and nuts.A bar of chocolate is picked at random from the container.The probability of picking a bar chocolate with raisins is \frac{3}{5}.How many bars of chocolate with nuts are there in the container..?
    Pr(picking a bar of chocolate with raisins) = x/20 where x is the number of bars of chocolate with raisins. Therefore x/20 = 3/5 => ....
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