Page 246 - Probability Demystified

FINAL EXAM 235

24. The number of different ways 5 boys and 4 girls can be selected from
7 boys and 9 girls is
a. 147
b. 2646
c. 635,040
d. 43,286

25. The number of different ways 8 children can be seated on a bench is
a. 8
b. 256
c. 6720
d. 40,320
26. A card is selected from an ordinary deck of 52 cards. The probability
that it is a three given that it is a red card is
1
a.
13
2
b.
13
1
c.
4
1
d.
2

27. Three cards are selected from an ordinary deck of 52 cards without
replacement. The probability of getting all diamonds is
1
a.
64
1
b.
12
3
c.
52
11
d.
850