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4 September, 07:59

How many MP3 players in the shipment would you predict to be damaged if 6 MP3s in the sample had been damaged

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Answers (2)
  1. 4 September, 08:15
    0
    Substitute values into the proportion.

    Substitute known values. Let x be the number of defective MP3 players in the population.

    6 / 50 = x / 3500

    50 x 70 = 3500, so multiply the numerator and denominator of the fraction 6/50 by 70.

    (6x70) / (50x70) = x / 3500

    420 / 3500 = x / 3500

    420 = x

    Based on the sample, we can predict that 420 MP3 players in the shipment would be defective.
  2. 4 September, 08:20
    0
    Given that there is a little information I would say all is damaged.
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