Statistical measures
This statistical measure refers to the spread of the data and has the symbol of σ2 or s2
What is variance
The bell curve displays this type of distribution of data
What is normal distribution
Grades and income levels are considered to be examples of this type of data
What is ordinal data
This test is commonly used to test the difference between two sample means
What is a t-test
The greek letter μ typically stands for this statistical measure
What is the population mean
Standardized measure of the relationship between two variables (hint: covariance divided by standard deviations)
What is correlation
Race and hair color are examples of this type of data
What is categorical or nominal data
This test is commonly used to compare categorical variables
What is a chi-square test
This statistical measure refers to the spread of the data from the mean and has the symbol of σ or s
This statistical measure gives us the probability that the true population parameter falls between two set values
What is a confidence interval
This type of data only has two possible outcomes (such as yes or no, negative or positive)
What is binary data
You would want to use a non-parametric test if your data is NOT distributed in this way
What is normally distributed
This statistical term refers to the most commonly found value in the dataset
A measure of the extent to which two random variables move together
What is covariance
Age and weight are examples of this type of data
What is continuous data
This test is commonly used to test the difference between two OR MORE sample means
What is ANOVA
An estimate of the extent to which the sample mean deviates from the population mean
What is standard error
The probability under a specified statistical model that a statistical summary of the data would be equal to or more extreme than its observed value
What is a p-value
This type of data can consist of words, pictures, and symbols (not numbers)
What is qualitative data
This type of distribution uses the sample standard deviation and is commonly used by statistical computing programs
What is t-distribution