Class
Name
Date
Practice
Form
Standard Deviation
11-6
K
Find the mean, variance, and standard deviation for each data set. SHOW ALL WORK!
Variance
1. 6, 13, 12, 9, 10
2
(xx )
x
x
xx
6
10
4
16
13
10
3
9
12
10
2
4
9
10
1
1
10
10
0
0
Mean
x = 50 5 = 10
s2 =

Name: Class: Date:
Honors Algebra 2 Chapter 8 Study Guide 2015
Short Answer (SHOW ALL WORK!)
Is the relationship between the variables in the table a direct variation, an inverse variation,
or neither? If it is a direct or inverse variation, write a funct

Name
Class
Date
9-4
Arithmetic Series
Form
Practice
K
Identify each list as a series or a sequence and finite or infinite.
1. 2, 6, 10, 14, K
4. 5 + 12 + 19 + 26 + 33
2. 1 + 4 + 7 + 10 + 13
5. 1.4 + 1.1 + 0.8 + 0.5 +
3. 4, 10, 16, 22, 28
K
6. 2 11 20 29

Name
Class
Date
9-2
Practice
Form
Arithmetic Sequences
K
Determine whether each sequence is arithmetic. If so, identify the common
difference.
1. 16, 13, 9, 4, 2,
2. 2, 9, 16, 23, 30,
3. 43, 56, 69, 82,
4. Reasoning Is the sequence represented by the f

Name
Class
9-1
Date
Practice
Form
Mathematical Patterns
K
Find the first five terms of each sequence.
2. an = n2 + 4
1. an = 4n 1
1
2
3. a = n +2
n
4. an =3
2
5. an =- 6n
6. Write an explicit formula for a sequence with 3, 5, 7, 9, and 11 as its first fiv

Name
Class
Date
9-5
Practice
Form
Geometric Series
K
Find the sum of each finite geometric series.
1. 2 + 6 + 18 + + 4374
2. 1 + 2 + 4 + + 2048
3. A family farm produced 2400 ears of corn in its first year. For each of the next 9 yr, the farm
increased it

Name
Class
Date
11-3
Probability of Multiple Events
Form
Practice
G
Classify each pair of events as dependent or independent.
1. A member of the junior class is selected as junior class president; a freshman is
selected as freshman class president.
2. An

Name
Class
Date
Practice
Form
Probability
11-2
K
Find each experimental probability.
1. A baseball player got a hit in 12 of his last 40 at bats. What is the probability that
he will get a hit in his next at bat?
2. A pitcher struck out 8 of the last 32 b

Going across and going down are different number sequences.
Fill in the empty boxes so that each sequence has a pattern.
Fill in the empty boxes so that each sequence below is geometric.
Each change of direction is a different sequence.
Honors Algebra 2 E