MFC Stats--Final Exam Review

Front

What is a Box Plot?

Back

A Box Plot, or Box-and-Whisker plot, is a graphical representation of a dataset that shows its minimum, first quartile, median, third quartile, and maximum. It is useful for displaying the spread and skewness of the data.

Front

What type of data display is best for showing the spread of test scores?

Back

A Box Plot is the most appropriate display for showing the spread of test scores as it summarizes the data distribution.

Front

How many hours are spent watching TV according to the graph?

Back

Approximately 3 hours.

Front

What is Stratified Sampling?

Back

Stratified Sampling is a method of sampling that involves dividing a population into subgroups (strata) and then randomly selecting samples from each stratum.

Front

What is the difference between Stratified and Cluster Sampling?

Back

Stratified Sampling involves dividing the population into strata and sampling from each, while Cluster Sampling involves dividing the population into clusters and randomly selecting entire clusters.

Front

What does a Stem-and-Leaf Plot represent?

Back

A Stem-and-Leaf Plot is a method of displaying quantitative data in a graphical format, similar to a histogram, that retains the original data values.

Front

What is the purpose of a Dot Plot?

Back

A Dot Plot is used to display the frequency of data points in a small dataset, showing individual values and their distribution.

Front

What is a Circle Graph (Pie Chart)?

Back

A Circle Graph, or Pie Chart, is a circular statistical graphic divided into slices to illustrate numerical proportions.

Front

What does it mean if two data sets have the same spread?

Back

If two data sets have the same spread, it means that the variability or dispersion of the data points in both sets is similar.

Front

What is a Bar Graph used for?

Back

A Bar Graph is used to represent categorical data with rectangular bars, where the length of each bar is proportional to the value it represents.