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Statistics And Methodology - Statistics And Methodology Section 1

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36. EBC DIC is an

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37. Suppose I discover that as I eat more vegetables, my body weight decreases. I have demonstrated

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38. Given Σdxdy = 186, Σdx = 11, Σdy = 7, N = 10, Σd2x = 215, Σd2y = 163. Find out correlation

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39. A machine on the average produces 5% defective articles. What are the mean and standard deviation in sets of 100 articles?

  • Option : C
  • Explanation : Mean = np = 100 x 0.05 = 5 σ = √(npq) = √(0.05 x 0.95 x 100) = 2.2 Hence the answer is (c).
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40. If the proportion of defective in bulk is 4%, find the probability of not more than 2 defectives in a sample of 10, it is known that e-4 = 6703

  • Option : A
  • Explanation : statistics and methodology mcq

    Probability of not more than 2 defectives

    = 0.6703 + 0.26812 + 0.053624

    = 0.992044 x 100

    = 99.2%

    Hence the answer is (a).
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Statistics And Methodology Section 1