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.   Use the table below. Given that a student is in the seventh grade, what is the probability that she has brown eyes?
   
    A. B.
    C. D.
    Hint

  5.   In Mrs. Lerman's classroom, 75% of the students wear watches, 30% wear eyeglasses, and 20% wear both watches and eyeglasses. A student is called to the board to explain a concept. If the student wears a watch, what is the probability that the student also wears eyeglasses?
    A. B.
    C. D.
    Hint