A graph where each data value is shown as a dot above ts location on a number line
What is a dot plot
100
adding the values of a set of observations and dividing by the number of observations
What is the mean
100
distribution of all values that variable among all individuals described by the table
What is marginal distribution
100
the square of the standard deviation
What is variance
100
When the dot plot has a "tail" to the left
What is Skewed left
200
The three ways to describe a dot plot
What is shape, center, and spread
200
the midpoint of the distribution. Half of the observations are smaller than this point and half are larger
What is the median
200
Describes the values of that variable among individuals who have a specific value of another variable
What is conditional distribution
200
Graph that can be highly misleading due to scale
What is a pictograph
200
when the right side of the graph is much longer than the left side
What is skewed right
300
This graph includes a five-number summary
What is a box plot
300
in a distribution, this consists of the smallest observation, the first quartile, the median, the third quartile, and the largest observation, written in order from smallest to largest
What is the five number summary
300
Horizontally consecutive boxes
What is a row
300
association between 2 variables that holds for each individual value of a third variable can be changed or even reversed when the data for all values of the third variable are combined.
What is simpson's paradox
300
When your data has these, rely on a median to tell you more than a mean
What are outliers
400
The most common graph of the distribution off one quantitative variable. Groups data together by the frequency of how many times the x value occurs.
What is a histogram
400
the average distance of the observation from their mean
What is standard deviation
400
Vertically consecutive boxes
What is a column
400
One gives the count of a variable, one gives the percent
What is the difference between a frequency table and a relative frequency table
400
When all of your percentages do not add up to 100 due to rounding
What is rounding error
500
the three ways to describe the peaks of a dot plot
What is unimodal (one peak), bimodal (two peaks), multimodal (many peaks)
500
1.5 x IQR (above third quartile or below first quartile)
What is the box plot outlier equation
500
A table that describes 2 categorical variables
What is a 2 way table
500
recommended graphs to display conditional distributions
What is a side by side bar graph and a segmented bar graph
500
When a score is above 74% of the rest of the scores in the data