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.

STEM AND LEAF PLOT0 1 8 8 8 81 0 0 1 2 2 3 3 9

Mean:10.2Median:10Mode: 8

Range: 18

FUNDAMENTAL COUNTING PRINCIPLE

8 x 4 x 3= 96 The probability is 1/96