Probability
A number between 0 and 1.
What is probability?
The set of all possible outcomes
What is sample space?
Tells us how far apart our data points are; sometimes referred to as spread; can be measured using the range.
What is variability?
A set of data that is randomly selected from a population.
The 4 groups that box plots are split into.
What are quartiles?
An experiment in which each outcome is equally likely to occur.
What is Uniform Probability?
The mathematical chance that something will happen.
What is theoretical probability?
3 terms: the average of terms in a data set; the middle term when ordered least to greatest; the value that occurs most often
What is mean, median and mode?
The complete set of items or the group from which you select your sample.
What is a population?
What do box plots show us?
The five number summary.
An experiment in which outcomes are unequally likely to occur.
What is Non-Uniform Probability?
What is observed relative frequency (experimental probability)?
The difference between the highest and lowest values.
Occurs when you select without reason or pattern.
What is random sampling?
3 answers: the smallest value on a box plot, the largest value on a box plot, and the middle value on a box plot
What is minimum, maximum and median?
The likelihood of an event occurring.
What does probability tell us?
The outcome where you get what you want.
How do we define success in probability?
The difference between the Upper Quartile and the Lower Quartile.
What is the Interquartile Range (IQR)?
Ms. G wants to gather data on how many students like to play video games, so she goes to the local game stop and asks every 5th student who walks in. Is this fair or flawed and why?
Flawed; it is biased towards students who like video games. It is likely that students in a game stop really like video games.
2 answers: the median of the lower half of data; the median of the upper half of data.
What is the lower quartile and upper quartile?
A number out of 100.
What is a percent?
The more trials of an experiment that you do...
The closer your experimental probability gets to your theoretical probability.
A point that is far away from the rest of the data.
What is an outlier?
What is the word for a sample that seems to favor the opinions of a particular group of people?
Biased.
What is another name for box plots?
Box and whisker plots.