1.   Raphael is conducting a survey of families with 2 children. If a family is selected at random, what is the probability that the family will have exactly 2 girls if the second child is a girl?
    A. B.
    C. 1 D.
    Hint

  2.   A card is chosen at random from a standard deck of cards. Determine the probability of choosing a red card, given that the card is an ace.
    A. B.
    C. D.
    Hint

  3.   In Mr. Jonas' homeroom, 70% of the students have brown hair, 25% have brown eyes, and 5% have both brown hair and brown eyes. A student is excused early to go to a doctor's appointment. If the student has brown hair, what is the probability that the student also has brown eyes?
    A. B.
    C. D.
    Hint

  4.   Using a standard deck of 52 cards, find the probability of choosing a 10 given that the card is red.
    A. B.
    C. D.
    Hint

  5.   A bag contains 5 blue marbles and 8 brown marbles. One marble is randomly drawn and discarded. Then a second marble is drawn. Find the probability that the second marble is blue given that the first marble drawn was brown.
    A. B.
    C. D.
    Hint