Engineering Mathematics : 100 Most Important Questions with Solutions

1. Stokes' theorem is generalization of:
A. Green's theorem B. Lagrange Theorem
C. Mean Value Theorem D. Rolls Theorem
Ans. A

2. When the correlation coefficient r = ±1, then two regression lines are
A. parallel to each other. B. perpendicular to each other.
C. may be parallel or perpendicular. D. intersecting at any other angle than 90°.
Ans. A

3. If probability that husband will be alive 20 years form no = 0.8 and probability that wife
will be alive 28 years from now = 0.9, then at least one will be alive after 20 years is:
A. 0.67 B. 0.77
C. 0.92 D. 0.98
Ans. D

4. When Binomial distribution is used in a limiting form is i.e., (n → ∞)
A. Normal distribution B. Poisson distribution
C. Binomial distribution D. None of the above
Ans. A

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