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
3

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Answer:

Identify the dependent variable as either increasing, decreasing, or unchanged as the independent variable increases. It is possible to have no relationship shown on the graph.

4

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.
5

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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