Foundation
Difference between the highest and lowest values in a data set
What is Range?
Probability
The likelihood of an event occurring, ranging from 0-1, based on axioms of probability
Quantitative Data
Numeric data that can be measured
A numerical summary of a population
a quantitative variable that has either a finite number of possible values or a countable number of possible values
Median
What is the middle value of a dataset when arranged in order of magnitude?
Null Hypothesis
Qualitative Data
Catergorical data describing characteristics or attributes
the entire group being studied
continuous variable
a quantitative variable that has an infinite number of possible values that are not countable
Mode
The most frequently occurring value in a dataset
Alternative Hypothesis
A statement contradicting the null hypothesis, suggesting an effect or relationship
Dependent Variable
The outcome variable affected by the changes in the independent variable
Sample
a subset of the population that is being studied
Frame
a list of all the individuals within the population
Standard Deviation
The square root variance, showing average deviation from the mean
Type 1 Error
Rejecting the null hypothesis when it is actually true
Random Sample
a subset of a population selected so that each member has an equal chance of being chosen
Individual
a person or object that is a member of the population being studied
sample without replacement
an individual who is selected is removed from the population and cannot be chosen again
Mean
Confidence Interval
a range of values likely to contain the true population parameter, often expressed at 95% confidence
How much of a population needs to be chosen for a random sample?
Statistic
a numerical summary of a sample
sample with replacement