**Unit 12-15 Review

Front

What is a positive correlation?

Back

A positive correlation is a relationship between two variables where an increase in one variable leads to an increase in the other variable.

Front

What is the measure of a missing angle in a triangle if the other two angles are 51° and 78°?

Back

The measure of the missing angle is 51°.

Front

What is the formula to find the diameter from the circumference?

Back

The diameter can be found using the formula: Diameter = Circumference / π.

Front

If the circumference is 9.4, what is the diameter?

Back

The diameter is 3.

Front

What is an arc in a circle?

Back

An arc is a portion of the circumference of a circle.

Front

How do you find the measure of an arc in a circle?

Back

The measure of an arc can be found using the formula: Arc Measure = (Central Angle / 360) * Circumference.

Front

What is a line of best fit?

Back

A line of best fit is a straight line that best represents the data on a scatter plot.

Front

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

Back

No correlation means that there is no predictable relationship between the two variables.

Front

What is a negative correlation?

Back

A negative correlation is a relationship between two variables where an increase in one variable leads to a decrease in the other variable.

Front

What is the relationship between diameter and radius?

Back

The diameter is twice the length of the radius: Diameter = 2 * Radius.