10.4 Stem & Leaf ...with Flashcard Review

Front

What is a Stem-and-Leaf Plot?

Back

A Stem-and-Leaf Plot is a method of displaying quantitative data in a graphical format, similar to a histogram, to retain the original data values while showing their distribution.

Front

How do you find the range of a data set?

Back

The range is found by subtracting the smallest value from the largest value in the data set.

Front

What is the median in 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 observations, the median is the average of the two middle numbers.

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 the mean of a data set?

Back

The mean is calculated by adding all the values in the data set and dividing by the number of values.

Front

What does it mean if a data set has outliers?

Back

Outliers are values that are significantly higher or lower than the majority of the data points in a data set, which can skew the results.

Front

How do you interpret a Stem-and-Leaf Plot?

Back

In a Stem-and-Leaf Plot, the 'stem' represents the leading digit(s) and the 'leaf' represents the trailing digit(s) of the data values, allowing for easy visualization of the distribution.

Front

What is the best measure of center when there are outliers?

Back

The median is often the best measure of center when there are outliers, as it is less affected by extreme values.

Front

How can you determine how many students scored above a certain percentage?

Back

Count the number of data points in the set that are greater than the specified percentage.

Front

What is the purpose of using a Stem-and-Leaf Plot?

Back

The purpose is to organize and display data while preserving the original values, making it easier to analyze the distribution.