Companies M, Q and R supply machine parts in a 5:3:2 ratio respectively.
0.2% of the parts from M are defective.
0.1% of the parts from Q are defective.
0.5% of the parts from R are defective.
We have the following data:
For two machine parts chosen at random, calculate the probability that:
a) Both are supplied from M and both are defective.
b) Both supplied by one of the other companies and both are defective.