The principle of redundancy is used w
Assume that a student's alarm clo
of redundancy is used when system reliability is improved through redundant or backup components.
a student's alarm clock has a 11.3% daily failure rate. Complete parts (a) through (d) below.
a. What is the probability that the stude
robability that the student's alarm clock will not work on the morning of an important final exam?
(Round to three decimal places as needed.)
b. If the student has two such alarm clocks, what is the pro
exam?
Wo such alarm clocks, what is the probability that they both fail on the morning of an important final
(Round to five decimal places as needed.)
c. What is the probability of not being awakened if the student uses three independent alarm clocks?
(Round to five decimal places as needed.)