Dot Plots, Frequency, Stem & Leaf

Front

What is a dot plot?

Back

A dot plot is a simple way to display data using dots above a number line, where each dot represents one data point.

Front

How do you find the frequency of a data point in a dot plot?

Back

Frequency is the number of times a data point appears in the data set, represented by the number of dots above that point in the dot plot.

Front

What does it mean if a dot plot has a high frequency for a certain value?

Back

It means that many data points have that value, indicating it is common in the data set.

Front

What is a stem-and-leaf plot?

Back

A stem-and-leaf plot is a way to display quantitative data where each number is split into a 'stem' (the leading digit) and a 'leaf' (the trailing digit).

Front

How do you read a stem-and-leaf plot?

Back

To read a stem-and-leaf plot, look at the stems on the left and the leaves on the right to understand the data distribution.

Front

What is the purpose of using a frequency table?

Back

A frequency table organizes data to show how often each value occurs, making it easier to analyze the data.

Front

How can you determine the mode from a dot plot?

Back

The mode is the value that appears most frequently in the dot plot, represented by the highest stack of dots.

Front

What is the median in a data set?

Back

The median is the middle value when the data points are arranged in order. If there is an even number of data points, it is the average of the two middle values.

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 does it mean if a data point is an outlier?

Back

An outlier is a data point that is significantly higher or lower than the other values in the data set.