Problem 19E

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?

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