A
a sample in witch every number of the population has an equally likely chance of being chosen
random sample
an experiment where you repeatedly conduct a trial or process that can have 2 or more results due to uncertainty and then observe the results
chance experiment
a number that summarizes data collected from the entire population
population characteristics
the expected relative frequency of an event when conducting many trials of the chance experiment when all outcomes in the simple space are equally likely it is the number of outcomes that give that event divided by the number of possible outcomes
theoretical probability
sign to mean the same as
equal
any collection of members of a population
sample
the probability of an event that is calculated after observing the outcomes of multiple trials of the chance experiment it is the value of a ratio of the number of trials conducted
chance experiment
the value of the ratio of the number of members of a population that have specified characteristic to the total number of members in the population
population proportion
a graphical representation that displays all possible sequences and outcomes in a multistage experiment. the tree starts by displaying 2 or more branches the represent possible outcomes in the fist stage of the experiment. each of those branches then split off in to the possible outcomes of the second stage. if there are more stages the process continues until all possible outcomes are graphed
tree diagram
a number or the result of a calculation.
value
a number that summarizes data collected from a sample
sample statistic
a set of one or more possible outcomes a simple event is an event with one outcome a compound event is one with more than one outcome
event
a measure of how likely it is that an event will happen we describe it by using a number between 0 and 1
probability
a collection of facts such as numbers words measurements observations or just descriptions of things. Data can be qualitative or quantitative.
data
The result of adding
total
the distribution of values of a statistic calculated for repeated samples of the same size and of the same population
sampling distribution
a result of a single trial of a chance experiment
outcome
a mathematical representation of of a chance experiment that accounts for all outcomes within a simple space and assigns probability to each outcome
probability model
A ratio says how much of one thing there is compared to another thing. Ratios can be shown in different ways
ratio
the difference between the lowest and highest values
range
the variation in the values of a statistic among samples of the same size and population.
sampling variability
any entire collection of people or animals or objects someone is interested in learning about each person animal or objects in in the population is a member
population
a process in witch we conduct a chance experiment that closely resembles a real situation of interest
simulation
is the average of the numbers: a calculated "central" value of a set of numbers.
mean
Parts per 100.
percent