AnswersPre-Algebra BConstructing Scatterplots

Constructing Scatterplots Answers

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A cell phone company collected data about students’ texting skills. They collected the texting speed in words per minute according to time in minutes. Identify the data’s independent and dependent variables.

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A cell phone company collected data about students’ texting skills. They collected the texting speed in words per minute according to time in minutes. Identify the data’s independent and dependent var:time
A cell phone company collected data about students’ texting skills. They collected the texting speed in words per minute according to time in minutes. Identify the data’s independent and dependent var:texting speed
2
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The dependent variable is classstudent✔ texting speedtime.

A
class
B
student
C
✔ texting speed
D
time
3

A cell phone company collected data about students’ texting skills. They collected the texting speed in words per minute according to time in minutes. Identify the data’s independent and dependent variables.

Answers:
A cell phone company collected data about students’ texting skills. They collected the texting speed in words per minute according to time in minutes. Identify the data’s independent and dependent var:time
A cell phone company collected data about students’ texting skills. They collected the texting speed in words per minute according to time in minutes. Identify the data’s independent and dependent var:texting speed
4

The y-axis label of the scatterplot is number of words✔ texting speedtime.

A
number of words
B
✔ texting speed
C
time
5

Use the scatterplot to determine if there is a relationship. If there is a relationship, explain it.

A
Yes, there is a relationship. As time increases, texting speed increases.
B
Yes, there is a relationship. As time increases, texting speed decreases.
C
Yes, there is a relationship. As texting speed increases, time increases.
D
No, there is no relationship displayed.
6

If this data was plotted on a scatterplot, would there be a relationship between the variables? If yes, explain the relationship.

A
Yes, there is a relationship. As age increases, texting speed also increases.
B
Yes, there is a relationship. As age increases, texting speed decreases.
C
Yes, there is a relationship. As texting speed decreases, age also decreases.
D
No, there is no clear relationship between age and texting speed.

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