Suppose that 500 machine parts are inspected before they are shipped, that I denotes that
a machine part is improperly assembled, D denotes that it contains one or more defective
components and the distribution of the 5oo machine parts among various categories is as
shown in the Venn diagram

Assuming equal probabilities in the selection of one of the machine parts for inspection.
What is the probability of getting a part with one or more defective components?
Whether the probability is the same if the choice is restricted to the machine parts that are
improperly assembled?