Visualizations of Data Test

Front

What does it mean if data is right skewed?

Back

A majority of the data is on the low end of the range.

Front

What do pie charts represent?

Back

Pie charts represent the percentages of each categorical data point.

Front

What are the three qualities of an association that can be interpreted from a scatterplot?

Back

Shape, direction, and strength.

Front

How are outliers defined in relation to quartiles?

Back

Outliers are defined as any value that is farther away from the first or third quartile than 1.5 times the interquartile range (IQR).

Front

Do the whiskers of a box and whisker plot always extend to the minimum and maximum values of a data set?

Back

False, the whiskers may not extend to the minimum and maximum values.

Front

What is the interquartile range (IQR)?

Back

The interquartile range (IQR) is the difference between the first quartile (Q1) and the third quartile (Q3) of a data set.

Front

What is the purpose of a scatterplot?

Back

A scatterplot is used to visualize the relationship between two quantitative variables.

Front

What does the shape of a scatterplot indicate?

Back

The shape of a scatterplot indicates the type of relationship (linear, nonlinear, etc.) between the variables.

Front

What does the direction of a scatterplot tell us?

Back

The direction indicates whether the relationship between the variables is positive, negative, or neutral.

Front

What does the strength of a relationship in a scatterplot refer to?

Back

The strength refers to how closely the data points cluster around a line of best fit.