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August 21, 2014

August 21, 2014

Posted by **Rena** on Wednesday, December 8, 2010 at 3:07pm.

a. If a product failed check A, what is the probability that it also failed check B?

b. If a product failed check B, what is the probability that it also failed check A?

c. What is the probability that a product failed either check A or check B?

d. What is the probability that a product failed neither check A nor check B?

- Math -
**Jane**, Wednesday, December 8, 2010 at 6:15pma. 10% out of 100% failed A or 10/100

3% of 100% failed A & B or 3/100

3% that failed A(10%) also failed B or 3/10

b. 12% out of 100% failed B

3% out of 100% failed A & B or 3/12

c. failed A - 10%

failed B - 12%

sub total 22%(-3% counted double-failed both)

= 19% total

d. 100%-19% that failed =81% chance product did not fail.

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