Statistics and Probability Questions & Answer

Statistics and Probability Questions & Answer Addition - ANSWER: For mutually exclusive events we can use the ____ Principle of Counting. Addition Rule - ANSWER: For probability this rule states that (A ∪ B) = P(A) + P(B) - P(A ∩ B) Average - ANSWER: This is the sum the numbers in a set, divided by the number of items in the set. Average - ANSWER: You get this when you add a group of numbers and then divide by how many numbers you have. Bar Graph - ANSWER: This is a graphical means of quantitative comparison by rectangles with lengths proportional to the measure of the data or things compared. Categorical Data - ANSWER: Data that cannot be measured, but is divided into groups. Central - ANSWER: The mean, median, and mode of a set of data are called measures of _____ tendency. Certain - ANSWER: An event is called _____ if the probability it will occur equals 1. Circle/Pie Graph - ANSWER: This is a circular chart cut by radii into segments illustrating relative magnitudes or frequencies. These are great for displaying percentage data. Combination - ANSWER: Counts the number of ways objects can be formed into groups of a certain size..........................................