1.   A home security company offers a security system that uses the numbers 0 through 6, inclusive, for a 3-digit security code. How many different security codes are possible if no digit may be repeated?
    A. 20 B. 35
    C. 210 D. 120
    Hint

  2.   How many different six-letter patterns can be formed from the letters of the word turkey?
    A. 120 B. 156
    C. 720 D. 30
    Hint

  3.   How many ways can 5 people be seated at a round table?
    A. 48 B. 24
    C. 240 D. 120
    Hint

  4.   A bag contains 2 yellow, 4 blue, and 3 white marbles. What is the probability that a marble selected at random will not be blue?
    A. B.
    C. D.
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  5.   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. D. 1
    Hint

  6.   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.
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  7.   What is the value of C(8, 4)?
    A. 6720 B. 1680
    C. 26 D. 70
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  8.   Using a standard deck of 52 cards, what are the odds of choosing a card with a value of 8 or less?
    A. B.
    C. D.
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  9.   Using a standard deck of 52 cards, find the probability of choosing 2 cards that are both black or both kings, without replacement.
    A. B.
    C. D.
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  10.   Find the probability of randomly picking 3 kittens of which at least 2 are female kittens, from a group of 7 male kittens and 5 female kittens.
    A. B.
    C. D.
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  11.   A number cube is tossed four times. Find the probability that at least two 6s are tossed.
    A. 0.1106 B. 0.1319
    C. 0.1748 D. 0.0962
    Hint

  12.   The probability of tossing a tail on a bent coin is . The coin is tossed 5 times. Find the probability of tossing exactly 3 tails.
    A. 0.3028 B. 0.3292
    C. 0.2906 D. 0.3114
    Hint