Question 1175359
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Hi
a.  Using Binomial distribution: p(def) =.04   q = .96  n = 10
P(x ≥ 2) = 1 - P(x ≤ 1) = 1 - binomcdf(10, .04, 1) = 1 - .9418 = .0582

b.  Use the Poisson Distribution:  
P(x ≥ 2) = 1 - P(x ≤ 1) = 1 -poissoncdf(.04, 1) = 1-.9992 = .0008
Wish You the Best in your Studies.
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