Data Displays Review

Front

What is the MEDIAN of a data set?

Back

The median is the middle value when the data set is ordered from least to greatest. If there is an even number of values, the median is the average of the two middle numbers.

Front

What is the first quartile (Q1) in a data set?

Back

The first quartile (Q1) is the value that separates the lowest 25% of the data from the rest. It is the median of the lower half of the data set.

Front

What percentage of a circle does a 90-degree angle represent?

Back

A 90-degree angle represents 25% of a circle, as a full circle is 360 degrees.

Front

How do you determine the number of values below a certain threshold in a data set?

Back

Count the number of data points that are less than the specified threshold value.

Front

What does it mean if a distribution is SKEWED LEFT?

Back

A left-skewed distribution has a longer tail on the left side, indicating that there are more lower values in the data set.

Front

What is a box plot?

Back

A box plot is a graphical representation of a data set that shows the median, quartiles, and any outliers.

Front

What is the range of a data set?

Back

The range is the difference between the highest and lowest values in the data set.

Front

What is a histogram?

Back

A histogram is a type of bar graph that represents the frequency distribution of numerical data.

Front

What is the mode of a data set?

Back

The mode is the value that appears most frequently in a data set.

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.