Lifetimes of electronic components can often be modeled by an exponential model. Suppose quality control engineers want to model the lifetime of a hard drive to have a mean lifetime of

33

years.a) What value of

lambda

should they use?b) With this model, what would the probability be that a hard drive lasts

66

years or less?

a)

lambdaequals=nothing

(Type a simplified fraction.)b) The probability be that a hard drive lasts

66

years or less is

nothing.

(Round to three decimal places as needed.)