Algebra 1 : Midterm Test Practice

Front

What is correlation in statistics?

Back

Correlation measures the strength and direction of a linear relationship between two variables. It can be positive, negative, or zero.

Front

What does a strong positive correlation indicate?

Back

A strong positive correlation indicates that as one variable increases, the other variable also tends to increase.

Tags

CCSS.HSS.ID.B.5

Front

What is slope-intercept form of a linear equation?

Back

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Front

How do you find the y-intercept of a linear equation?

Back

Front

What is the slope of a line?

Back

The slope of a line is a measure of its steepness, calculated as the change in y divided by the change in x (rise over run).

Tags

CCSS.8.EE.B.5

Front

What does a strong negative correlation indicate?

Back

A strong negative correlation indicates that as one variable increases, the other variable tends to decrease.

Tags

CCSS.HSS.ID.B.5

Front

How do you convert an equation to slope-intercept form?

Back

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Front

What is the significance of the y-intercept in a graph?

Back

Front

What does it mean if there is no correlation between two variables?

Back

No correlation means there is no predictable relationship between the two variables; changes in one do not affect the other.

Tags

CCSS.HSS.ID.B.5

Front

What is the formula for calculating the slope between two points (x1, y1) and (x2, y2)?

Back

Tags

CCSS.8.EE.B.5