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2 January, 05:07

A box contains 10 transistors, 3 of which are defective. If 3 are selected at random, find the probability that a. All are defective. b. None are defective.

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  1. 2 January, 05:54
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    A) 3/10 x 2/9 x 1/8 = 1/120

    b) 1-1/120=119/120
  2. 2 January, 06:07
    0
    3/10 (2/9) (1/8)

    3/10 (3/9) (3/8)
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