Dot Plots & Histograms

Front

What is a dot plot?

Back

A dot plot is a statistical chart that consists of dots plotted on a number line, where each dot represents a data point.

Front

What is a histogram?

Back

A histogram is a graphical representation of the distribution of numerical data, showing the frequency of data points within specified intervals.

Front

How do you find the median of a data set?

Back

To find the median, arrange the data points in ascending order and identify the middle value. If there is an even number of data points, the median is the average of the two middle values.

Front

What is an outlier?

Back

An outlier is a data point that differs significantly from other observations in a data set, often appearing far away from the rest of the data.

Front

How do you determine the frequency of a data interval in a histogram?

Back

The frequency of a data interval is determined by counting how many data points fall within that interval.

Front

What does it mean if a histogram is skewed to the right?

Back

A histogram skewed to the right indicates that the majority of data points are concentrated on the left side, with a few larger values extending to the right.

Front

What is the purpose of using a dot plot?

Back

Dot plots are used to display small data sets clearly, allowing for easy visualization of individual data points and their frequencies.

Front

How can you identify the mode in a data set?

Back

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

Front

What is the range of a data set?

Back

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

Front

How do you interpret the height of bars in a histogram?

Back

The height of each bar in a histogram represents the frequency of data points within the corresponding interval.