[FLASHCARDIZZ] Unit 11 Lesson 1D Dot Plot/Histogram/Box Plot(Outlier)

Front

What is a Box Plot?

Back

A Box Plot, or Box-and-Whisker Plot, is a graphical representation of a dataset that displays its minimum, first quartile (Q1), median (Q2), third quartile (Q3), and maximum values.

Front

What does the Upper Quartile (Q3) represent?

Back

The Upper Quartile (Q3) is the median of the upper half of a dataset, representing the 75th percentile.

Front

How do you calculate the Lower Quartile (Q1)?

Back

The Lower Quartile (Q1) is calculated as the median of the lower half of the dataset, representing the 25th percentile.

Front

What is the Interquartile Range (IQR)?

Back

The Interquartile Range (IQR) is the difference between the Upper Quartile (Q3) and the Lower Quartile (Q1), calculated as IQR = Q3 - Q1.

Front

What is an outlier?

Back

An outlier is a data point that is significantly different from other observations in a dataset, often identified using the IQR method.

Front

How do you identify outliers using the 1.5 IQR rule?

Back

Outliers are identified as any data point that is less than Q1 - 1.5*IQR or greater than Q3 + 1.5*IQR.

Front

What is the median of a dataset?

Back

The median is the middle value of a dataset when it is ordered from least to greatest. If there is an even number of observations, it is the average of the two middle values.

Front

Given the data set: 84, 88, 72, 74, 98, 16, 94, what is the Upper Quartile?

Back

The Upper Quartile (Q3) is 94.

Front

Given the data set: 84, 88, 72, 74, 98, 16, 94, what is the Lower Quartile?

Back

The Lower Quartile (Q1) is 72.

Front

In the context of salaries, why is the median often preferred over the mean?

Back

The median is preferred because it is less affected by outliers, providing a better representation of typical salaries.