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Math (Statistics and Probability)
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Terms in this set (70)
Addition
For mutually exclusive events we can use the ____ Principle of Counting.
Addition Rule
For probability this rule states that (A ∪ B) = P(A) + P(B) - P(A ∩ B)
Average
This is the sum the numbers in a set, divided by the number of items in the set.
Average
You get this when you add a group of numbers and then divide by how many numbers you have.
Bar Graph
This is a graphical means of quantitative comparison by rectangles with lengths proportional to the measure of the data or things compared.
Categorical Data
Data that cannot be measured, but is divided into groups.
Central
The mean, median, and mode of a set of data are called measures of _____ tendency.
Certain
An event is called _____ if the probability it will occur equals 1.
Circle/Pie Graph
This is a circular chart cut by radii into segments illustrating relative magnitudes or frequencies. These are great for displaying percentage data.
Combination
Counts the number of ways objects can be formed into groups of a certain size.
Combinations
This is a way to count the number of outcomes: one or more elements selected from a set without regard to the order of selection. The formula is written as follows: Cn,r = (n!)/[r!(n-r)!]
Complement
The set of all elements that are in the universal set but not in the set you are talking about.
Complementary
If two events have probabilities which sum to 1, they are called ________ events.
Conditional Probability
The probability that event B will occur, given that event A has occurred, is called its ____ probability.
Counting
A way of computing the possible number of outcomes in an experiment. It is called the ___ Principle.
Data
When gathering information for research we say we are collecting _____.
Dependent Events
Events in which the outcome of one event affects the outcome of the other event are called ________.
Difference
The answer when a subtraction problem is performed.
Disjoint
If the probability of two events occurring together is 0, the events are called ___.
Display
The presentation of numerical information in a graph or table is called a data ____.
Double Bar Graph
A graph that allows us to compare two or more pieces of information in one graph.
Event
An outcome in a probability experiment.
Experiment
A test or trial of a hypothesis.
Experimental
The ratio of the number of times an event occurs to the total number of trials is called its ____ probability.
Experimental Study
A study in which conditions are under the direct control of the investigator.
Factorial
For n, it is the product of all numbers beginning with n counting backwards to 1. It is called n _______.
Favorable Outcomes
The desired outcomes of a specified event.
Frequency
Often recorded in a table or displayed in a graph, this is the number of times a specific value or observation occurs in a set of data.
Frequency Diagram
This is an outline designed to demonstrate or explain the number of times a specified periodic phenomenon occurs within a specified interval.
Frequency Distribution
Values and their frequency displayed in a table or graph.
Graph
When we plot all the points that satisfy an equation or inequality we ___ it.
Histogram
A special type of bar graph in which data are grouped into intervals of equal width.
Impossible
An event is called _____ if the probability it will occur equals 0.
Independent
The variable, usually on the x-axis, which is used to predict y-values, is called the ____ variable. It is also sometimes called the explanatory variable.
Independent
Events that have no effect on each others' probability are called _______ events.
Integers
These numbers are either whole numbers, or the negatives of whole numbers. They are called ______.
Intersection Of Sets
Obtained by listing the elements that are common to both sets.
Joint Events
Two events that occur at the same time or finding the probability of both events together.
Line Graph
A graph that is represented by points connected by segments.
Mean
This is the sum of all the results included in the sample, divided by the number of observations.
Median
The segment drawn from a vertex in a triangle to the midpoint of the opposite side.
Median
The middle term in a set of data. If the data set has an even number of terms this is the average of the two middle terms.
Mode
This is the most frequently occurring element in a set.
Mutually Exclusive
This describes two or more events which cannot occur simultaneously.
Observational Study
A type of research where a conclusion is drawn by comparing subjects to a control group and the researcher has no control over the experiment.
Outcomes
The different possible results from a probability model.
Permutation
It is the idea that distinguishable objects may be arranged in various different orders.
Pie Graph
A graph that represents data as a portion of a whole. This type of graph is often expressed in percent form.
Population Group
The entire group being studied, and from which samples are taken, is called the ____.
Positive Number
A number greater than 0 is called ____.
Probability
The ___ of an event happening is expressed as a fraction between 0 and 1.
Product
The result after multiplying a set of numbers or algebraic expressions is called the ___.
Quantitative Data
Data that can be measured on an numerical scale. It can be measured.
Random
The type of sample in which each member of the sample set or group has an equal chance of being chosen.
Range
This is the difference between the maximum and the minimum value in a data set.
Sample
This is part of a population selected to predict information about the population as a whole.
Sample Space
This is the set of all possible outcomes of an experiment.
Scatter Plot
A graph that displays a collection of ordered pairs is called a ___.
Simple Probability
A probability that has exactly one stage or one experiment is called ___ probability.
Space
This is the set of all points. It is made up of an infinite number of planes.
Sum
The result after adding a set of numbers or algebraic expressions is called a ___.
Sum
The answer to an addition problem is called a ___.
Survey
This is asking or inquiring people's opinion.
Table
This is an arrangement of data, usually in rows and columns. It is called a ___.
Tendency
These are statistics that describe the center of a distribution: mean, median, mode. They measure central _____.
Tree Diagram
This helps to visually display the outcomes of an experiment consisting of a series of activities (rolling dice multiple times, total pizza choices, etc.). The total number of outcomes corresponds to the total number of final branches in the diagram.
Union Of Sets
This is the set made taking all the elements from two sets, not repeating any elements.
Venn Diagram
A diagram that uses circles or ovals to illustrate the relationship between sets.
Weighted Averages
The average of a set of data in which each data point was not counted the same amount.
Whole
The counting numbers, together with 0, are called the _____ numbers.
Related questions
QUESTION
The probability of a number cube landing on 4 is the same as the odds of a number cube landing on 4.
QUESTION
what is the multiplication rule for dependent events?
QUESTION
A constructors initialization section is inside of a set of curly braces, {} after a :
QUESTION
With practice, a good communicator can capture event details that tell the audience not only what the event looks like, but also how it feels.
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