## Competency 17 Probability and Statistics

 Probability
 # of favorable outcomes total # of possible outcomes   is a formula that can be used to find this…
 Mode
 the number that occurs or appears the most is called the…
 Median
 The middle value of all numbers when put in order from least to greatest is called the…
 Range
 The distance between the highest and the lost number is the…
 Mean
 When finding the average by adding all the addends then diving the sum by the number of addends will give you the…
 Tally Chart
 a quick way of counting how many are in each category
 Line Plot
 _____________ shows data on a number line
 Line Graph
 shows change over time uses points and lines usually a time period the steepest art shows the greatest change What type of graph is this?
 Pictograph
 A graph that uses pictures to show and compare information
 Bar Graph
 Used to compare facts about groups shows single subject can also show similar kinds of data What type of graph is this?
 Pie Graph
 shows data a a whole with different parts it is the shape of a circle
 Scattergrams
 the relationship between two sets of data used to see how close to a straight line the points will lie
 Tree Diagram
 This type of diagram shows an organized list of all possible outcomes   Example: If Ralph has 2 pairs of pants and 3 shirts, how many possible outfits can he make?