Graphs
This graph is used to display frequencies of quantitative data.
What is a histogram?
An attribute than can take different values for different individuals
What is a variable?
What four things do we need to address when comparing distributions?
What is a center, shape, variability, outliers/unusual features?
What is the shape of a Normal distribution?
What is symmetric (or bell curved)?
Used to display frequencies of categorical data.
What is bar chart?
This is the statistical term for the number of times an event occurs.
What is frequency?
The typical distance from the mean
What is standard deviation?
What three major ways can we describe the shape of a distribution?
What is a fourth?!
What is skewed left, skewed right, and approximately symmetric?
Bimodal
The table of z-scores gives us the area to the ____ of a specific value.
What is left?
This graph is similar to a side-by-side bar graph, but the bar are stacked on top of each other.
What is segmented bar graph?
The distance between the maximum and minimum in a set of data.
What is range?
The number of standard deviations above or below the mean a data point is.
What is z-score?
To compare center between histograms, what measure would we look at?
What is median?
What percent of data is found within one standard deviation of the mean of a Normal distribution?
What is 68%?
You use a five number summary to create this type of graph.
What is box plot?
The difference between the third and first quartile?
What is interquartile range?
The percent of individuals below a given value.
What is percentile?
To compare variability between box plots, what would we look at?
What is IQR or range?
What calculator function will help us with normal distribution calculations?
What is normalcdf(?
This graph always has a key telling us what numbers are in the graph. For example, 2|5 = 2.5 centimeters.
What is stemplot?
This table list the categories in a categorical variable and give the percentage of the observations for each category.
What is a Relative Frequency Table?
How to identify an outlier
What is 1.5 x IQR rule?
In addition to using comparing words and specific numbers, what do we need to make sure to have in our answer when comparing distributions?
What is context?
What percent of data is between mean+2SD and mean+3SD in a Normal distribution?
What is 2.35%?