Page 248 - Probability Demystified

FINAL EXAM 237

32. The probability of an event when the odds against the event are
4 : 9 are
9
a.
13
4
b.
9
5
c.
9
4
d.
13
33. A person selects a card at random from a box containing 5 cards.
One card has a 5 written on it. Two cards have a 10 written on them,
and two cards have a 3 written on them. The expected value of the
draw is

a. 4.5
b. 1.8
c. 3.6
d. 6.2
34. When a game is fair, the odds of winning will be
a. 1 : 2
b. 1 : 1
c. 2 : 1
d. 3 : 2

35. A person has 2 pennies, 3 nickels, 4 dimes, and 1 quarter in her purse.
If she selects one coin at random, the expected value of the coin is

a. 4.7 cents
b. 6.3 cents
c. 8.2 cents
d. 12.4 cents

36. The number of outcomes of a binomial experiment is
a. 1
b. 2
c. 3
d. Unknown