Distributions
When a majority of data points reside on one side of the graph, considered to have a "long tail."
What is a Skewed Distribution?
This rule is used to solve for the probability of event A OR event B.
What is the Addition Rule?
The area to the left of this z-score is 0.0062.
What is the area to left of a z-score of -2.5?
Data that must be whole non-negative numbers, "countable."
What is a Discrete Variable?
This is the Spanish word for "hello".
What is "Hola"?
A symmetric "bell" curve where the mean, median, and mode are identical.
What is the Normal Distribution?
This rule is used to solve for the probability of event A AND event B.
The Multiplication Rule
The area to the left of this z-score is 0.8531.
What is the area to the left of a z-score of 1.05?
Data that is not "countable", but instead "measurable". These variables can be fractions and decimals.
What is a Continuous Variable?
This planet is known as the "Red Planet".
What is Mars?
A rectangular distribution whose outcomes are equally likely over a closed interval.
What is a Uniform Distribution?
The complete set of all possible outcomes of a random experiment or probability trial.
What is the Sample Space?
The area to the right of this z-score is 0.5080.
What is the area to the right of a z-score of -0.02?
A variable that describes non-numerical characteristics, attributes, or labels that sort data into distinct categories.
What is a Qualitative Variable?
This historical document was signed in 1776. Typically celebrated in July.
What is the Declaration of Independence?
When data centers around two different points, creating two peaks.
What is a Bimodal Distribution?
The probability of this event is 0.5. The event is completed with a coin.
What is the probability of landing heads?
or
What is the probability of landing tails?
The area to the right of this z-score is 0.9983.
What is the area to the right of a z-score of -2.93?
A variable with only two possible values or outcomes.
What is a Binary Variable?
This cell type does not have a nucleus.
What is a Prokaryote?
Data that forms an extreme skew and starts at some minimum increasing exponentially, or some maximum decreasing exponentially, without creating a peak.
What is a J-Shape Distribution?
An example of this is:
The probability that a student is taking a History course given they are taking an English course.
What is Conditional Probability?
The area the between these z-scores is 0.6827. This can be found with the "Empirical Rule".
What is the area between a z-score of -1 and a z-score of 1?
The variable manipulated or changed by researchers to test its effect.
What is an Independent Variable?
This is today's Wordle.
What is "Belle"?