4.6 A test contains two multiple-choice questions. If a student makes a random guess to answer each

question, how many outcomes are possible? Depict all these outcomes in a Venn diagram. Also draw a

tree diagram for this experiment. (Hint: Consider two outcomes for each questioneither the answer is

correct or it is wrong.)

4.7 A box contains a certain number of computer parts, a few of which are defective. Two parts are se-

lected at random from this box and inspected to determine if they are good or defective. How many total

outcomes are possible? Draw a tree diagram for this experiment.