1.   Statistics collected in a particular coal-mining region show that the probability that a miner will develop respiratory problems is . Also, the probability that a miner will develop back problems is . If one health problem does not affect the other, what is the probability that a randomly selected miner will develop respiratory problems but will not develop back problems?
    A. B.
    C. D.
    Hint

  2.   Determine the probability of choosing a penny or a nickel from 7 pennies, 2 nickels and 5 dimes.
    A. B.
    C. D.
    Hint

  3.   Find the probability of selecting an orange, replacing it, then selecting an apple from a bowl of 8 oranges and 6 apples.
    A. B.
    C. D.
    Hint

  4.   Find the probability of picking a fashion magazine, then a sports magazine from a stack of 12 fashion, 9 sports, and 10 home and garden magazines.
    A. B.
    C. D.
    Hint

  5.   Find the probability of choosing either a blue ball or a green ball from a bag containing 3 blue, 5 green, 1 red, and 7 yellow balls.
    A. B.
    C. D.
    Hint