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Find the probability that two are grade a

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Reference no: EM132139570

Hardboard is graded with the following frequencies:

Grade A: 1/5 Grade B: 3/4 Cull: 1/20

If six pieces come off of a hot press, find the probability that two are Grade A, three are Grade B, and one is a Cull.

Reference no: EM132139570

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