Question 1049175
A) The probability that all five are acceptable is 9/12 x 8/11 x 7/10 x 6/9 x 5/8, or 0.15909.

B) Probability for 3 being acceptable is 9/12 x 8/11 x 7/10 x 3/9 x 2/8, or 0.0318181. &#9786;&#9786;&#9786;&#9786;