mean - correct answer average It is the sum (total) of all the values in a set of data. To find the mean, add up all the values in the set. Then divide the sum by how many values there are
median - correct answer the middle number in a sorted, ascending or descending
To find the median, put all numbers into ascending order and work into the middle by crossing off numbers at each end. if you are left with 2 numbers then take the average of the 2 to get the median
mode - correct answer number that appears most often in a set of numbers can have one mode, more than one, or no mode at all
range - correct answer the difference between the lowest and highest values subtract highest - lowest number
area - correct answer the space occupied by a flat shape or surface of an object. it is the number of unit squares that cover the surface of a closed figure and measures the space inside a shape rectangle:
square:
perimeter - correct answer the distance around the outside of a shape -add the sides to find the perimeter -perimeter of a circle is the circumference (2 pie r)