Practice Final Exam
ROUND ALL OF YOUR ANSWERS TO THE
SAME NUMBER OF DECIMAL PLACES AS THE OPTIONS HAVE
.
1
Given the following data set, find the standard deviation.
Value Frequency
20
9
21
7
22
6
23
4
24
5
25
5
a.
u
1. 7853
b.
u
1. 7603
c.
u
3. 0988
d.
u
3. 1873
e. None of these
2
Given the set
A
u
u
2,1,6,10,14
U
and
B
u
u
2,4,8,7,11
U
, find
A
U
B
.
a.
u
1,2,4,6,7,8,10,11,14
U
b.
u
2,14
U
c.
u
1,2,4,6,7,8,10,11
U
d.
u
2
U
e. None of these
3
What is the probability of winning first prize in a 41/5 lottery (The lottery has 41 numbers, 5 are
chosen as winners, and the player chooses 5 numbers)?
a. 1. 2277
u
10
±
6
b. 1. 2143
u
10
±
6
c. 1. 4412
u
10
±
6
d. 1. 3344
u
10
±
6
e. None of these
4
A loan is taken out for 1019 dollars for 26 years. If the loan is a compound interest loan at 8. 3
percent compounded monthly, what is the future value of the loan.
a. 1. 7474
u
10
74
b. 1219.0
c. 3218.0
d. 8753. 0
e. None of these