Dot Plots and Histograms

Front

What is a dot plot?

Back

A dot plot is a statistical chart that consists of dots representing the frequency of data points. Each dot represents one occurrence of a value.

Front

What is a histogram?

Back

A histogram is a type of bar graph that represents the frequency distribution of numerical data. It shows how many data points fall within certain ranges (bins).

Front

How do you determine 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 can you find the median of a data set?

Back

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

Front

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

Back

A right-skewed histogram indicates that most data points are concentrated on the left side, with a few larger values stretching the tail to the right.

Front

What does it mean if a histogram is symmetric?

Back

A symmetric histogram indicates that the data is evenly distributed around the center, with similar frequencies on both sides.

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 that range (bin). Higher bars indicate more data points.

Front

What is a frequency table?

Back

A frequency table is a table that displays the number of occurrences of each value in a data set.

Front

How do you create a dot plot?

Back

To create a dot plot, list the unique values of the data set on a number line and place a dot above each value for every occurrence.