specific midterm Flashcards
(20 cards)
what visuals use single continuous?
density plot and histogram
what visuals use single discrete?
bar plot
what visuals use discrete and continuous?
box plot and violin plot
what visuals use discrete and discrete?
proportion plot
what visuals use continuous and continuous?
scatter plot
what is normative research?
answers questions about how the world ought to be
what is empiracal research?
answers questions about how the world is
what is a confounding variable?
multiple thigns that oculd be effecting the results
if skewed left use…
either mean or median
if skewed right use…
mean
what is affected by outliers?
mean
what is the difference between a histogram and frequency distribution?
histogram shows count and frequency distribution shows probability of falling in a range
if data is continuous w/ more than 10 categories use…
histogram
z scores are used to…
find probability of how far above/below mean a value is
what is postive kurtosis?
the tail is fatter
what is negetive kurtosis?
the tail is thinner
what is a frequency distribution?
how often each value appears in a single variable
what is a summary statistics table?
provides descriptive statistics and can be used in any type of data