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8 January, 13:15

A flooring company produces tile in batches of 36. when performing a quality-control analysis, the company tests 4 pieces of tile per batch. in order to test its quality control procedures, a batch of tiles with 6 defective tiles is tested. what is the probability that no defective tiles are selected?

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  1. 8 January, 13:39
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    9.26%

    total tiles 36,

    4 will be test so probability of testing 4/36

    non defective = 30

    probability of testing non defective 4/36 x 30/36 x 100=

    9.26%
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