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Seventy percent of rivets from vendor A meet a certain
Chapter 4, Problem 19E(choose chapter or problem)
Seventy percent of rivets from vendor A meet a certain strength specification, and 80% of rivets from vendor B meet the same specification. If 500 rivets are purchased from each vendor, what is the probability that more than 775 of the rivets meet the specifications?
Questions & Answers
QUESTION:
Seventy percent of rivets from vendor A meet a certain strength specification, and 80% of rivets from vendor B meet the same specification. If 500 rivets are purchased from each vendor, what is the probability that more than 775 of the rivets meet the specifications?
ANSWER:
Solution
Step 1 of 5
Here we have to find the probability that more than 774 reverts meet the specification
Let X is the no. of reverts from vender A meet the specification
Let Y is the no. of reverts from vendor B meet the specification
Here X
Y