Histograms Flashcard

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 ranges (bins).

Front

How do you read a histogram?

Back

To read a histogram, look at the height of the bars, which represents the frequency of data points in each bin. The x-axis shows the bins, while the y-axis shows the frequency.

Front

What does the width of the bars in a histogram represent?

Back

The width of the bars in a histogram represents the range of values in each bin.

Front

What is the purpose of using a histogram?

Back

The purpose of using a histogram is to visualize the distribution of data, making it easier to identify patterns, trends, and outliers.

Front

How can you determine the mode from a histogram?

Back

The mode can be determined from a histogram by identifying the highest bar, which represents the bin with the most frequent data points.

Front

What information can you not obtain from a histogram?

Back

You cannot obtain exact values or specific data points from a histogram; it only shows frequency distributions.

Front

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

Back

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

Front

How do you find the total number of data points represented in a histogram?

Back

To find the total number of data points, sum the heights of all the bars in the histogram.

Front

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

Back

If a histogram is skewed to the right, it means that there are more lower values and fewer higher values, indicating a longer tail on the right side.

Front

What does it mean if a histogram is symmetric?

Back

If a histogram is symmetric, it means that the data is evenly distributed around the center, with similar frequencies on both sides.