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20 July, 22:38

The probability that a lab specimen contains high levels of contamination is 0.15. A group of 4 independent samples are checked. Round your answers to four decimal places (e. g. 98.7654). (a) What is the probability that none contain high levels of contamination

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  1. 21 July, 00:16
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    0.5220

    Step-by-step explanation:

    Since the probability of contamination is 0.15, the probability of no contamination is 1 - 0.15 = 0.85

    The probability that they are all contaminated will be 0.85 * 0.85 0.85 * 0.85 = 0.52200625

    This is 0.5220 to four decimal
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