The statistical mean can also be used to interpret statistical data. Some important properties make statistical mean very useful for measuring central tendency. Since Xi - X is the distance from a given number to the average. The numbers to the left of the mean are balanced by the numbers to the right of the mean.
Show the angles below using two pencils. Try to âseeâ the circle that is traced out in the air. This is a 1-degree angle! an obtuse angle; 127Â°. a right angle; 90Â°. How to measure an angle with a protractor 1  : Place the midpoint of the protractor on the VERTEX of the angle. 2  Line up one side of the angle with the zero line of the protractor (where you see the number 0). 3  Read the degrees where the other side crosses the number scale.
Angles that are exactly 90 degrees are called right angles. Angles less than 90 degrees are called as acute angles. Angles that are exactly 180 degrees is called as straight angle. Angles less than 180 degrees yet greater than 90 degrees are called as obtuse angles. Common Misspellings: Angle is often mispelled angel. Examples: The angle of a typical house rooftop is often an obtuse angle. Two lines or rays meet together to form an angle. 1  Article. Review Your Chemistry Terms with This Glossary (C) 2  Article. A Definition (in a Roundabout Way) of Periphrasis. 3  List. Excel TAN Function: Find the Tangent of an Angle. 4  List. Polygons. 5  Article. 140 Key Copyediting Terms. 6  Article. Classic Car Terms and Definitions. 7  List.