What is the difference between a sample mean and the population mean called?

Drag the tiles to the boxes to form correct pairs. not all tiles will be used. match each set of vertices with the type of quadrilateral they form

School has 204 sixth grade students. if the sixth grade is 30% of the total school, how many students are in the middle school?

Idon’t understand! use slope intercept form to solve: through: (2,5) slope= undefined