Page 245 - Probability Demystified

234 FINAL EXAM

19. Three cards are drawn from an ordinary deck of 52 cards without
replacement. The probability of getting three queens is
1
a.
2197
3
b.
52
1
c.
5525
1
d.
169

20. An automobile license plate consists of 3 letters followed by 2 digits.
The number of different plates that can be made if repetitions are
not permitted is

a. 7800
b. 1,404,000
c. 1,757,600
d. 6318

21. The number of different arrangements of the letters of the word next is
a. 256
b. 24
c. 18
d. 16
22. A psychology quiz consists of 12 true-false questions. The number of
possible different answer keys that can be made is
a. 24
b. 144
c. 47,900,600
d. 4096

23. How many different ways can 4 books be selected from 7 books?
a. 210
b. 35
c. 28
d. 840