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Math Problems
Algebra 1
Experimental probability
In a random sample of a particular model of drone,
2.5
%
2.5 \%
2.5%
of the drones have a manufacturing defect. At this rate, how many of
4
4
4
,
000
000
000
drones of the same model will have a manufacturing defect?
\newline
Choose
1
1
1
answer:
\newline
(A)
2
2
2
.
5
5
5
\newline
(B)
25
25
25
\newline
(C)
100
100
100
\newline
(D)
1
1
1
,
000
000
000
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Timpony School District surveyed a random sample of
60
60
60
middle school students about the amount of time they watch TV. Of the students surveyed,
14
14
14
average watching more than
4
4
4
hours of TV each day. There are
1143
1143
1143
middle school students in the Timpony School District. Based on the data, what is the most reasonable estimate for the number of Timpony School District middle school students who average watching more than
4
4
4
hours of TV each day?
\newline
Choose
1
1
1
answer:
\newline
(A)
14
14
14
\newline
(B)
76
76
76
\newline
(C)
267
\mathbf{2 6 7}
267
\newline
(D)
876
876
876
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Bernard randomly selected
10
%
10 \%
10%
of St. Francis citizens and asked them about their favorite coffee shop. Of the citizens surveyed,
7
7
7
said that Energize was their favorite coffee shop. Based on the data, what is the most reasonable estimate of the number of St. Francis citizens whose favorite coffee shop is Energize?
\newline
Choose
1
1
1
answer:
\newline
(A)
7
7
7
\newline
(B)
10
10
10
\newline
(C)
63
63
63
\newline
(D)
70
70
70
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Timpony School District surveyed a random sample of
60
60
60
middle school students about the amount of time they watch TV. Of the students surveyed,
14
14
14
average watching more than
4
4
4
hours of TV each day. There are
1143
1143
1143
middle school students in the Timpony School District. Based on the data, what is the most reasonable estimate for the number of Timpony School District middle school students who average watching more than
4
4
4
hours of TV each day?
\newline
Choose
1
1
1
answer:
\newline
(A)
14
14
14
\newline
(B)
76
76
76
\newline
(C)
267
\mathbf{2 6 7}
267
\newline
(D)
876
876
876
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Two airplanes, which start
3
3
3
,
300
300
300
miles apart, fly toward each other. The two planes fly at a constant speed, but their speeds differ by
80
80
80
miles per hour (mph). After
5
5
5
hours, the planes pass each other. What is the speed of the faster plane?
\newline
Choose
1
1
1
answer:
\newline
(A)
290
m
p
h
290 \mathrm{mph}
290
mph
\newline
(B)
338
m
p
h
338 \mathrm{mph}
338
mph
\newline
(C)
370
m
p
h
370 \mathrm{mph}
370
mph
\newline
(D)
450
m
p
h
450 \mathrm{mph}
450
mph
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