Histogram Flashcard

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

What is a dot plot?

Back

A dot plot is a simple statistical chart that consists of dots plotted above a number line. Each dot represents one data point.

Front

How do you determine the number of students in a specific height range using a histogram?

Back

To determine the number of students in a specific height range, look at the height range on the x-axis and find the corresponding bar. The height of the bar indicates the number of students.

Front

What does the x-axis represent in a histogram?

Back

The x-axis in a histogram represents the intervals or bins of the data being measured.

Front

What does the y-axis represent in a histogram?

Back

The y-axis in a histogram represents the frequency or count of data points within each bin.

Front

How can you tell if a data set is normally distributed using a histogram?

Back

A data set is normally distributed if the histogram has a bell-shaped curve, with most data points concentrated around the mean.

Front

What is the difference between a histogram and a bar graph?

Back

A histogram is used for continuous data and shows frequency distributions, while a bar graph is used for categorical data and compares different groups.

Front

How do you read a histogram?

Back

To read a histogram, identify the bins on the x-axis and the corresponding heights of the bars on the y-axis to understand the distribution of data.

Front

What is the purpose of using a histogram?

Back

The purpose of using a histogram is to visually summarize and analyze the distribution of a data set.

Front

What is a frequency distribution?

Back

A frequency distribution is a summary of how often each value occurs in a data set.