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Math Problems
Grade 7
Create stem-and-leaf plots
44
44
44
. A stem and leaf diagram has the key:
11
∣
4
11 \mid 4
11
∣
4
means
1135
1135
1135
. What will
10
∣
7
10 \mid 7
10
∣
7
from the same diagram mean.
\newline
A.
1165
1165
1165
\newline
B.
1065
1065
1065
\newline
C.
1075
1075
1075
\newline
D.
965
965
965
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PRACTICE PROBLEMS:
\newline
The stem-and-leaf plot shown below shows the weights of some dogs.
\newline
Key:
1
1
1
|
6
=
16
6=16
6
=
16
pounds
\newline
(a) How many dogs' weights are shown?
\newline
dogs
\newline
(b) What is the range of the dogs' weights?
\newline
□
\square
□
\newline
(c) How many dogs weigh less than
35
35
35
pounds?
\newline
(d) Find the mode of the dogs' weights.
\newline
(e) Find the median of the dogs' weights.
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In a survey,
17
17
17
high school graduates and
18
18
18
non-graduates were asked a question:
\newline
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A string is divided into
5
5
5
parts with lengths forming a geometric sequence. If the shortest string is
16
16
16
cm and the longest string is
81
81
81
cm, then the original length of the string is...
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