Lugo1585 Lugo1585
  • 13-05-2023
  • Mathematics
Answered

The size (in millimeter) of a crack in a structural weld described by a random variable X with the following PDF: f_X(x) = {x/8 0 < x ≤2 1/4 2 < x ≤ 5 0 elsewhere. (a) Sketch the PDF and CDF on a piece of graph paper. (b) Determine the mean crack size. (c) What is the probability that a crack will be smaller than 4 mm?



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