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9-12 Algebra 1 Unit 1 Lesson 3

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K-5 Math 6-8 Math •9-12 Math

Course

•Algebra 1 Geometry Algebra 2 Extra Support Materials for Algebra 1

Unit

•Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8

Lesson

Lesson 1 Lesson 2 •Lesson 3 Lesson 4 Lesson 5 Lesson 6 Lesson 7 Lesson 8 Lesson 9 Lesson 10 Lesson 11 Lesson 12 Lesson 13 Lesson 14 Lesson 15 Lesson 16

K-5
6-8
9-12

Algebra 1
Geometry
Algebra 2
Extra Support Materials for Algebra 1

Integrated Math 1
Integrated Math 2
Integrated Math 3

Unit 1
Unit 2
Unit 3
Unit 4
Unit 5
Unit 6
Unit 7
Unit 8

Lesson 1
Lesson 2
Lesson 3
Lesson 4
Lesson 5
Lesson 6
Lesson 7
Lesson 8
Lesson 9
Lesson 10
Lesson 11
Lesson 12
Lesson 13
Lesson 14
Lesson 15
Lesson 16

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Unit 1, Lesson 3

A Gallery of Data

Algebra 1

Practice

Problem 1

The box plot represents the distribution of speeds, in miles per hour, of 100 cars as they passed through a busy intersection.

<p>Box plot from 4 to 48 by 4’s. Speed of car in miles per hour. Whisker from 8 to 12. Box from 12 to 24 with vertical line at 20. Whisker from 24 to 44.<br>
</p>

What is the smallest value in the data set? Interpret this value in the situation.
What is the largest value in the data set? Interpret this value in the situation.
What is the median? Interpret this value in the situation.
What is the first quartile (Q1)? Interpret this value in the situation.
What is the third quartile (Q3)? Interpret this value in the situation.

to access Practice Problem Solutions.

Problem 2

The data set represents the number of eggs produced by a small group of chickens each day for ten days.

7
7
7
7
7
8
8
8
8
9

Select all the values that could represent the typical number of eggs produced in a day.

7.5 eggs
7.6 eggs
7.7 eggs
8 eggs
9 eggs

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Problem 3

ForLesson 2: Data Representations

The dot plot displays the lengths of pencils (in inches) used by students in a class. What is the mean?

<p>Dot plot from 5 to 7 by 0.5’s. Length(inches). Beginning at 5, number of dots above each increment is 1, 2, 4, 2, 1.</p>

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Problem 4

ForLesson 2: Data Representations

The histogram represents ages of 39 people at a store that sells children's clothes. Which interval contains the median?

<p>Histogram from 0 to 35 by 5’s. age (years). Beginning at 0 up to but not including 5, height of bar at each interval is 10, 8, 6, 3, 5, 3, 4.</p>

The interval from 0 to 5 years.
The interval from 5 to 10 years.
The interval from 10 to 15 years.
The interval from 15 to 20 years.

to access Practice Problem Solutions.

Problem 5

ForLesson 2: Data Representations

The data set represents the responses, in degrees Fahrenheit, collected to answer the question “How hot is the sidewalk during the school day?”.

92
95
95
95
98
100
100
100
103
105
105
111
112
115
115
116
117
117
118
119
119
119
119
119
119

Create a dot plot to represent the distribution of the data.
Create a histogram to represent the distribution of the data.
Which display gives you a better overall understanding of the data? Explain your reasoning.

to access Practice Problem Solutions.

Problem 6

ForLesson 1: Getting to Know You

Is “What is the area of the floor in this classroom?” a statistical question? Explain your reasoning.

to access Practice Problem Solutions.

Lesson 3 Resources

Student Materials Student Materials in Spanish