Concept explainers
Flawed parts: On a certain day, a foundry manufactured 500 cast aluminum parts. Some of these had major flaws, some had minor flaws, and some had both major and minor flaws. The following table presents tile results.
Find the
Find the probability that a randomly chosen part has a minor flaw.
Find the probability that a randomly chosen part has a flaw (major or minor).
Find the probability that a randomly chosen part has no major flaw.
Find the probability that a randomly chosen part has no flaw.
a.
To find: The probability of a randomly chosen part has a major flaw.
Answer to Problem 42E
The probability of a randomly chosen part has a major flaw is
Explanation of Solution
Given information: The number of cast aluminum parts a foundry manufacturedis
Calculation:
The number of chosen parts has a major flaw is,
Therefore,
b.
To find: The probability of a randomly chosen part has a minor flaw.
Answer to Problem 42E
The probability of a randomly chosen part has a minor flaw is
Explanation of Solution
Given information: The number of cast aluminum parts a foundry manufacturedis
Calculation:
The number of chosen parts has a minor flaw is,
So,
c.
To find: The probability of a randomly chosen part has a flaw
Answer to Problem 42E
The probability of a randomly chosen part has a flaw
Explanation of Solution
Given information: The number of cast aluminum parts a foundry manufacturedis
Calculation:
The number of chosen parts has a flaw is,
Therefore,
d.
To find: The probability of a randomly chosen part has no major flaw.
Answer to Problem 42E
The probability of a randomly chosen part has no major flaw is
Explanation of Solution
Given information: The number of cast aluminum parts a foundry manufacturedis
Calculation:
The number of chosen parts has no major flaw is,
Hence,
e.
To find: The probability of a randomly chosen part has no flaw.
Answer to Problem 42E
The probability of a randomly chosen part has no flaw is
Explanation of Solution
Given information: The number of cast aluminum parts a foundry manufacturedis
Calculation:
The number of chosen parts has no flawis
Therefore,
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Chapter 5 Solutions
Elementary Statistics ( 3rd International Edition ) Isbn:9781260092561
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