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25 June, 20:56

A consumer report counted 72 low quality, 112 medium quality, and 711 high quality computers based on a random sample. The report went on to say that all computers, regardless of quality, are packaged identically and sold at the same price. Use the observed frequencies to create a probability model for the quality of the next computer purchased

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  1. 25 June, 21:32
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    Total number of computers in sample = 72 + 112 + 711 = 895.

    P (LQ) = 72/895 = 0.08

    P (MQ) = 112/895 = 0.125

    P (HQ) = 711/895 = 0.794
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