Statistics 2
Terms
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- Independent events
- Two events that have no effect on the outcome of the other. For example, tossing a coin and rolling a die are independent events.
- Line plot
- A frequency table that uses the number line to display the data.
- Bar graph
- Graph that is used when you want to compare amounts to each other.
- Frequency table
- Chart that shows items and the number of times they occur.
- Mean
- The sum of the data divided by the number of addends.
- Box and whisker
- Plot that shows how data is distributed. It shows the high and low scores, median, and quartiles.
- Line graph
- The graph you would use to show changes over a time period.
- Theoretical probablility
- The likelihood an event will occur based on the number of possibles outcome. The ratio of the number of favorable outcomes to the number of possible outcomes.
- Permutation
- An arrangement in a particular order. The digits 1,2,and 3 would be arranged as 123,132,213,231,312,321.
- Counting principle
- The number of outcomes for an event with two or more distinct stages is the product of the number of outcomes at each stage.
- Circle graph
- Graph that is used to compare an amount to the whole.
- Experimental probability
- How likely an event is, based on collected data. For example: Number of 3s thrown/number of tosses.
- Range
- The difference between the highest and lowest items in a set of numerical data.
- Median
- The middle number when a set of numerical data is displayed in numerical order. There are just as many numbers higher than this number as there are lower.
- Random sample
- Subgroup selected at random from a population.
- Database
- An electronic spreadsheet in which information can be organized and reorganized for a variety of purposes.
- Representative sample
- Subgroup that has the same characteristics as the larger group.
- Probability
- Numerical term that describes how likely it is that an event will occur.
- Mode
- The item that appears most often in a set of data.
- Frequency
- How often an event or number occurs.