396 Quality Assurance
reliability.) The B
10
is usually the common statistic used; however,
the “X” can be any number.
• Probability plot: A plot of the probability of failure over time. (Note
that probability plots are based on the linearization of a specic dis-
tribution. Consequently, the form of a probability plot for one dis-
tribution will be different from the form for another. For example,
an exponential distribution probability plot has different axes than
those of a normal distribution probability plot.)
• Reliability versus time plot: A plot of the reliability over time.
• pdf plot: A plot of the probability density function (pdf).
• Failure rate versus time plot: A plot of the failure rate over time.
• Contour plot: A graphical repres ...