Solution Found!
Among the cast aluminum parts manufactured on a certain
Chapter 2, Problem 9E(choose chapter or problem)
Among the cast aluminum parts manufactured on a certain day, 80% were flawless, 15% had only minor flaws, and 5% had major flaws. Find the probability that a randomly chosen part
a. has a flaw (major or minor).
b. has no major flaw.
Questions & Answers
QUESTION:
Among the cast aluminum parts manufactured on a certain day, 80% were flawless, 15% had only minor flaws, and 5% had major flaws. Find the probability that a randomly chosen part
a. has a flaw (major or minor).
b. has no major flaw.
ANSWER:
Answer:
Step 1 of 2:
(a)
In this question, we are asked to find the probability that a randomly chosen part has a flaw( major or minor) among the aluminium parts manufactured on a certain day.
Flawless aluminium part =
Aluminium part which had major flaw =
Aluminium part which had minor flaw =
Since given data is in percentage.
We can say out of 100, 80 aluminium part is flawless.
Hence our probability would be
=
=
=
=
=
=
Hence the probability that a randomly chosen part has a flaw is 0.20.
Answer: