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Engineering Mathematics Miscellaneous

Engineering Mathematics

  1. The probability that a part manufactured by a company will be defective is 0.05. If such parts are selected randomly and inspected, then the probabilit y that at least t wo par ts will be defective is ____ (round off to two decimal places).
    1. ≈ 2.17
    2. ≈ 0.17
    3. ≈ 1.25
    4. ≈ 1.17
Correct Option: B

(P)defective = 0.05
(P)non-defective = 1 – 0.05 = 0.95
Probability that atleast two parts will be defective,

= 1 – 0.829
Required probability
P = 0.1709 ≈ 0.17



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