Online Update 1/10/12 7th/8th Grade
Do your best….Ask questions….Use your timely wisely 
Lesson 3-6
Box-and-Whisker Plots
glencoe
1. What is the median for a set of quiz scores?
A.
C.
15
16
B.
D.
13
17
Hint
glencoe
2. What is the upper quartile for the quiz scores?
A.
C.
13
12
Hint
glencoe
3. What is the upper extreme for the quiz scores?
B.
D.
17
20
A.
C.
3
17
B.
D.
15
20
Hint
glencoe
4. Find the interquartile range of the data.
A.
C.
17
5
B.
D.
7
10
Hint
glencoe
5. In a set of data, if the interquartile range is 8, the upper quartile is at 17, what
is the highest number that could be in the data without being an outlier?
A.
C.
50
30
B.
D.
29
52
Misleading Statistics
glencoe
1. Which statistic gives the most accurate information for the following set of
test scores?
2, 85, 87, 88, 89
A.
C.
median
range
B.
D.
mean
mode
Hint
glencoe
2. A realtor is examining data on average home prices in four separate
neighborhoods for the past year. Which graph gives the most accurate
representation of the home prices in a neighborhood?
A.
B.
C.
D.
Hint
glencoe
3. Which is not a reason that measures of central tendency for a set of data can
be misleading?
A.
C.
incomplete data
outliers in the data
B.
D.
too much data
inaccurate data
Hint
glencoe
4. Which statistic gives the most meaningful information about what price you
should expect to pay for a certain baseball bat if the following data are a set
of prices at different stores for the bat. {10, 10, 10, 10, 10.50, 11, 12, 14, 18}.
A.
C.
mean
range
B.
D.
mode
median
Hint
glencoe
5. Which of the following is a way in which statistics are made to be
misleading?
A.
C.
Outliers on data are brought up
and their effects on the
measures of central tendency
are explained.
The actual data are shown, and
you are allowed to figure out
the measures of central
tendency on your own.
B.
D.
bility Patterns
glencoe
1. Fill in the blank based on the model. 12 ÷ ___= 3
The scale is altered on a
graph.
All three measures of
central tendency are
presented.
3
A.
6
B.
4
C.
12
D.
Hint
glencoe
2. The number 132 is divisible by which of the following numbers?
All of the above
A.
11
B.
10
C.
5
D.
Hint
glencoe
3. What is the least positive number divisible by 2, 3, 5 and 7?
210
A.
70
B.
30
C.
420
D.
Hint
glencoe
4. Which of the following numbers is divisible by 9?
290
A.
109
B.
297
C.
Hint
989
D.
glencoe
5. What is the least positive number divisible by 4, 6, and 9?
216
A.
18
B.
72
C.
36
D.
Lesson 4-2
Prime Factorization
glencoe
1. Which of the following numbers is composite?
9
A.
23
B.
1
C.
31
D.
Hint
glencoe
2. Write the prime factorization of 204.
2 × 3 × 17
A.
2 × 17
B.
2 × 2 × 3 × 17
C.
6 × 17
D.
Hint
glencoe
3. Which of the following numbers is prime?
63
A.
75
B.
57
C.
43
D.
Hint
glencoe
4. What are the prime factors of 810?
2, 3, 5
A.
2, 5, 9
B.
3, 5
C.
3, 4, 5
D.
Hint
glencoe
5. Write the prime factorization of 810.
2 × 34 × 5
A.
2 ×3 × 5
B.
32 × 4 × 5
C.
2 × 5 × 92
D.
Lesson 4-3
Patterns and Functions: Sequences
glencoe
1. Find the next term in the sequence 2, 6, 18, ...
22
A.
30
B.
38
C.
Hint
glencoe
54
D.
2. Find the next term in the sequence 1, 1, 2, 3, 5, 8, 13, ...
20
A.
26
B.
18
C.
21
D.
Hint
glencoe
3. Find the next term in the sequence
15, 19, 23, 27, …
30
A.
81
B.
31
C.
29
D.
Hint
glencoe
4. Find the next term in the sequence
83, 92, 101, 110, …
121
A.
55
B.
119
C.
111
D.
Hint
glencoe
5. Find the next term in the sequence
1, 6, 36, 216,
222
A.
1296
B.
7776
C.
1944
D.
Lesson 4-4
Greatest Common Factor
glencoe
1. Based on the factor trees, what is the greatest common factor of 8 and 20?
4
2
A.
B.
8
20
C.
D.
Hint
glencoe
2. What is the greatest common factor of 16x2 and 12x?
16x2
12x
A.
B.
4x2
C.
4x
D.
Hint
glencoe
3. What is the greatest common factor of 64 and 40?
4
2
A.
B.
8
20
C.
D.
Hint
glencoe
4. What is the greatest common factor of 20x2 and 32x3?
8x3
4x
A.
B.
2
4x
C.
8x
D.
Hint
glencoe
5. What is the greatest common factor of 14p2q and 42p3q2?
7p2q2
14pq
A.
B.
14p2q
7pq
C.
D.
Lesson 4-5
Simplifying Fractions and Ratios
glencoe
1.
Which fraction is
when written in simplest form?
A.
B.
C.
D.
Hint
glencoe
2.
Express
in simplest form.
A.
B.
C.
D.
Hint
glencoe
3.
Express
A.
in simplest form.
B.
C.
D.
Hint
glencoe
4. Express the ratio 96:12 in simplest form.
8:1
A.
96:12
B.
32:4
C.
24:3
D.
Hint
glencoe
5.
Which fraction is
when written in simplest form?
A.
B.
C.
D.