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Unit 5: Statistics & Probability
Terms in this set (29)
likelihood that a particular event will occur
The ratio of the number of times an event occurs to the total number of trials, or times that the activity is performed.
The ratio of the number of equally likely outcomes in an event to the total number of possible outcomes
an event that is not affected by another event.
an event who's outcome does depend on the outcome of a previous event
An event consisting of two or more simple events.
the set of all possible outcomes
Sample Space can be displayed using
lists, tables, and tree diagrams
Interquartile Range (IQR)
the difference between the first and third quartiles
Measures of Center (Central Tendency)
mean and median
Measures of Variability
range and IQR
an event cannot occur
An event probably will happen
the middle score in a distribution; half the scores are above it and half are below it.
An event that cannot occur.
An event will definitely happen.
The event has an equally likely chance of occurring.
An event that will probably not occur.
the smallest number in a set of data
the largest number in a set of data
Lower Quartile (Q1)
the middle number between the smallest number and the median of the data set.
Upper Quartile (Q3)
the median of the upper half of the data.
Suppose you roll a single number cube, translate "P(3)" into words
probability of rolling a 3
Independent or Dependent: A number cube is rolled twice
Independent or Dependent: Two cards are drawn, one after the other, from a deck of cards. The first card is not replaced.
Independent or Dependent: Picking a red M&M from the bag, eating it, then picking a green M&M.
Independent or Dependent: Picking a red M&M from the bag, replacing it, then picking a green M&M.
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