Show your work where appropriate in order to receive credit. Use appropriate symbols to indicate what you are doing. The number of points a problem is worth is found in the square brackets, [ ].
You may use your book, notes, and other resources I have provided. You must not work with another person on this exam. If I have evidence that you worked or copied someone else's work you may lose all points for that problem or potentially you will receive a zero on the exam; that goes for the other person as well. To avoid this potential problem, do not take this exam with someone else; do not talk about the problems in this exam with someone else. Instead, you can use problems from the homework as a conduit if needed. Do not compare answers with someone else.
class Male Female Boy Girl Total
First 175 144 5 1 325
second 168 93 11 13 285
Third 462 165 48 31 706
crew 862 23 0 0 885
Total 1667 425 64 45 2201
1. The table contains data on the passengers and crew aboard the Titanic. Answer the questions below based on the table.
When answering probability questions, write each question in function notation as done in the examples, then equal sign, followed by the answer (1/2 a point of the grade).
Round to four decimal places or leave as an unreduced fraction.
a. If we selected one individual at random what is the probability that this person is a boy or an adult male?
b. Suppose we choose a third class passenger at random. What is the probability this person is an adult female?
c. If we select one individual at random what is the probability that this person is a third class passenger or an adult female?