Histograms

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 specified ranges (bins).

Front

What does the height of a bar in a histogram represent?

Back

The height of a bar in a histogram represents the frequency or count of data points that fall within the corresponding interval (bin).

Front

What is the mode in a data set?

Back

The mode is the value that appears most frequently in a data set. In a histogram, it corresponds to the interval with the highest bar.

Front

How do you determine the range of a data set?

Back

The range is calculated by subtracting the smallest value from the largest value in the data set.

Front

What is an interval in a histogram?

Back

An interval (or bin) in a histogram is a specific range of values that groups data points together for frequency counting.

Front

How can 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 is the difference between a histogram and a bar graph?

Back

A histogram displays the distribution of numerical data using continuous intervals, while a bar graph represents categorical data with distinct categories.

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 is the significance of the tallest bar in a histogram?

Back

The tallest bar in a histogram indicates the interval with the highest frequency of data points, representing the mode of the data.

Front

How do you interpret the gaps between bars in a histogram?

Back

In a histogram, there should be no gaps between bars, as it represents continuous data. Gaps indicate that the data is categorical, not numerical.