Question

A building contractor buys 80% of his cement from supplier A and 20% from supplier B. A total of 75% of the bags from

A arrive undamaged, and a total of 95% of the bags from B arrive undamaged.
Find the probability that an undamaged bag is from supplier B.
The probability is ?
(Round your answer to three decimal places, if necessary.)

Answer 1

The probability that the damaged thing came from B is .04/,19 = .2105 or 21.05% of the damaged goods come from company B.

Explanation: