In your own words, explain what two-dimensional (2-D)
and three dimensional (3-D)
models are. Give an example
of one you've seen recently.

Afactory buys 10% of its components from suppliers b and the rest from supplier c. it is known that 6% of the components it buys are faulty. of the components brought from suppliers a,9% are faulty and of the components bought from suppliers b, 3% are faulty. find the percentage of components bought from supplier c that are faulty.