DSCI Midterm

what does single dot in file path mean

working directory

what does 2 dots in file path mean

previous directory

characteristics of data

strength, direction, shape

what functions do bar graphs not display

mean and median

in which plot do mean and median get used

histograms

what does /n do

line break

what happens to the mean and standard deviation for each observed value

subtract the mean and divide by standard deviation

Descriptive Question

asks about summarized characteristics without interpretation

Exploratory Question

asks if there are patterns, trends or relationships

Predictive Question

asks about predictive measurements to predict an outcome

Inferential Question

asks if there are patterns, trends or relationships that can be applicable

Casual Question

asks if changing one factor will change another