Dot Plots and Stem & Leaf Plots

Front

What is a dot plot?

Back

A dot plot is a statistical chart that consists of dots representing the frequency of data points along a number line.

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.

Front

What does the RANGE of a data set represent?

Back

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

Front

How do you calculate the RANGE of the data set: 5, 12, 8, 20?

Back

RANGE = 20 - 5 = 15.

Front

What is the MODE of a data set?

Back

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

Front

How do you find the MODE of the data set: 4, 1, 2, 4, 3?

Back

The MODE is 4, as it appears most frequently.

Front

What does it mean if a data set is skewed left?

Back

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

Front

What does it mean if a data set is skewed right?

Back

A right-skewed distribution has a longer tail on the right side, indicating that there are a few higher values.

Front

What is a symmetrical distribution?

Back

A symmetrical distribution is one where the left and right sides of the data set are mirror images of each other.

Front

In a stem-and-leaf plot, what do the 'leaves' represent?

Back

The 'leaves' represent the last digits of the data values, while the 'stems' represent the leading digits.