Weekly Review 8.SP.2&3

A scatter plot shows a linear relationship between the number of hours studied and the score on a test. If a straight line is drawn to model this relationship, what does the closeness of the data points to the line indicate?

• The strength of the linear relationship

• The number of data points

• The slope of the line

• The intercept of the line

• 5

• 3

• -3

• 0

In a scatter plot, a line is drawn to model the relationship between the age of a car and its resale value. If the data points are very close to the line, what can be inferred?

• The model is a poor fit

• The model is a good fit

• The slope is zero

• The intercept is negative

• The rate of change

Tags

CCSS.HSF.LE.B.5

A scatter plot shows a linear trend between the number of hours worked and the amount of money earned. If the line fits the data well, what does this suggest about the relationship?

• There is no relationship

• There is a strong linear relationship

• The relationship is non-linear

• The data is random

• -4; it represents the initial value

Tags

CCSS.8.EE.B.5

When fitting a straight line to a scatter plot, what is the primary goal?

• To make the line as steep as possible

• To make the line pass through the origin

• To minimize the distance between the data points and the line

• To maximize the number of data points above the line

• The slope of the line

• The y-intercept of the line

• The x-intercept of the line

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

A scatter plot shows a linear relationship between temperature and ice cream sales. If the data points are scattered far from the line, what does this indicate?

• A strong linear relationship

• A weak linear relationship

• A perfect linear relationship

• No relationship

Tags

CCSS.HSF.LE.B.5