Math Dictionary Chapter 12 By: Derek Marsh and Tyler Henderson
Range, Median, Mean, Mode Range- The difference between the highest and the lowest #s in the data. Median- The middle # when the data are put in order Mean- sum of the #s divided how many #s there are Mode- the # that appears the most often
Stem and leaf plot A way to display data by putting it in order!
Lower and Upper quartiles Lower quartile- median of the first half of the data Upper quartile- median of the second half of the data
Box-and-whisker plot Used to organize and display data by breaking into quarters
Lower and Upper extreme Lower extreme- lowest # in the data Upper extreme- highest # in the data
Circle and line graphs Circle graph- breaks data into parts of a whole Line graph- displays data over time
Tree Diagram A diagram used to show all the possible outcomes/ combinations
Fundamental Counting Principle If one event can occur in m ways and then the second event can occur in n ways. The ways that the two events can occur together is m*n
Complementary When one or the other event has to happen probabilities will add up to one
Unfavorable outcome The outcome you don’t want to happen
Odds The ratio of favorable outcomes to unfavorable outcomes
Probability Number of favorable outcomes over the total number of outcomes.
Independent and Dependent Events Independent: The first event does not affect the second event. Dependent: The first event does have an affect on the second event.