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Math Problems
Algebra 2
Identify biased samples
On the first day of class, Albert skimmed
17
17
17
random pages from each of the books assigned in his literature class. Each assigned book has an equal number of pages.
\newline
Is this sample of the assigned reading likely to be biased?
\newline
Choices:
\newline
(A)yes
\newline
(B)no
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On the first day of class, Shivani skimmed
7
7
7
random pages from each of the books assigned in her literature class. Each assigned book has an equal number of pages.
\newline
Is this sample of the assigned reading likely to be biased?
\newline
Choices:
\newline
(A)yes
\newline
(B)no
Get tutor help
Latrell surveyed
17
17
17
politicians from his state about their views on certain issues.
\newline
Is this sample of citizens of the state likely to be biased?
\newline
Choices:
\newline
(A)yes
\newline
(B)no
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Jared polled
47
47
47
students from each school in his county. Each school is the same size.
\newline
Is this sample of the students in the county likely to be biased?
\newline
Choices:
\newline
(A)yes
\newline
(B)no
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Alana researched
5
5
5
downtown districts throughout each county in her state. Each county has an equal number of downtown districts.
\newline
Is this sample of the downtown districts in the state likely to be biased?
\newline
Choices:
\newline
(A)yes
\newline
(B)no
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Ezra polled
527
527
527
people throughout each city in his county. Each city is the same size.
\newline
Is this sample of the residents of cities in the county likely to be biased?
\newline
Choices:
\newline
(A)yes
\newline
(B)no
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What are the values of
𝑥
𝑥
x
that satisfy the equation |
x
−
7
x-7
x
−
7
|
−
3
-3
−
3
|
x
−
2
x-2
x
−
2
|
+
4
+4
+
4
|
x
+
8
x+8
x
+
8
|
+
+
+
|
x
x
x
|
=
=
=
441
441
441
?
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Sam surveyed
8
8
8
shoppers in the supermarket's bakery section about their purchasing habits.
\newline
Is this sample of the shoppers at the supermarket likely to be biased?
\newline
Choices:
\newline
(A) yes
\newline
(B) no
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Factor.
\newline
k
2
+
9
k
+
18
k^2 + 9k + 18
k
2
+
9
k
+
18
\newline
____
\newline
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Michael surveyed
2
2
2
politicians from his state about their views on certain issues.
\newline
Is this sample of citizens of the state likely to be biased?
\newline
Choices:
\newline
[A]yes
\newline
[B]no
Get tutor help
