The article “Reliability-Based Service-Life Assessmentof Aging Concrete Structures” (J. Structural Engr.,1993: 1600–1621) suggests that a Poisson process can beused to represent the occurrence of structural loads over time. Suppose the mean time between occurrences of loadsis .5 year.a. How many loads can be expected to occur during a2-year period?b. What is the probability that more than five loadsoccur during a 2-year period?c. How long must a time period be so that the probabilityof no loads occurring during that period is at most .1?
Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
The article “Reliability-Based Service-Life Assessment
of Aging Concrete Structures” (J. Structural Engr.,
1993: 1600–1621) suggests that a Poisson process can be
used to represent the occurrence of structural loads over time. Suppose the mean time between occurrences of loads
is .5 year.
a. How many loads can be expected to occur during a
2-year period?
b. What is the probability that more than five loads
occur during a 2-year period?
c. How long must a time period be so that the probability
of no loads occurring during that period is at most .1?
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