The words that start with S
Any collection of members of a population
Sample
Any entire collection of people, animals, or objects that someone is interested in learning about. Each person, animal, or object in the population is called a member.
population
An experiment where you repeatedly conduct a trial or a process that can have two or more results due to uncertainty and then observe the results
chance experiment
A collection of facts, such as numbers, words, measurements, observations or even just descriptions of things.
Data
The result of a single trial of a chance experiment
outcome
A procedure in which we conduct a chance experiment that closely resembles a real situation of interest
simulation
A number that summarizes data collected from the entire population
population characteristic
The probability of an event that is calculated after observing the outcomes from multiple trials of the chance experiment. It is the value of the ratio of the number of observations of the event to the number of trials conducted.
empirical probability
To find a value that is close enough to the right answer, usually with some thought or calculation involved.
estimate
A sample in which every member Of the population has an equally likely chance of being chosen
random sample
The variation in the values of a statistic among samples of the same size from the same population
sampling variability
The value of the ratio of the number of members of a population that have a specified characteristic to the total number of members in the population
population proportion
A set of one or more possible outcomes. A simple event is an event with only one outcome. A compound event is an event with more than one outcome.
event
What shows how many equal parts of a whole there are
fraction
How often something happens
frequency
A number that summarizes data collected from a sample
sample statistic
A measure of how likely it is thet an event will happen, We describe probability by using a number between O and 1.
probability
The expected relative frequency of an event when conducting many trials of the chance experiment. When all outcomes in the sample space are equally likely, it is the number of outcomes that give that event divided by the number of possible outcomes.
theoretical probability
Average of numbers on a number line.
mean
The difference between the lowest and highest values.
range
The distribution of the values of a statistic calculated for repeated samples of the same size from the same population
sampling distribution
A mathematical representation of a chance experiment that accounts for all outcomes within the sample space and assigns a probability to each outcome
probability model
A graphical representation that displays all possible sequences of outcomes in a multistage experiment. The tree starts by displaying two or more branches that represent the possible outcomes in the first stage of the experiment. Each of those branches then splits off to the possible outcomes in the second stage. If there are more stages, this process continues until all possible sequences of outcomes are displayed. The total number of branches at the end of the tree is the number of possible outcomes in the sample space of the multistage experiment. Each individual path of branches, from beginning to end, is a unique sequence of single-stage results that forms an outcome of the multistage experiment.
tree diagram
Parts per 100
percent
A number, or the result of a calculation.
value