One Variable Statistical Graphs 2024

Front

What is a histogram?

Back

A histogram is a type of bar graph that represents the frequency distribution of numerical data. It displays the data in intervals (bins) and shows how many data points fall into each interval.

Front

What type of data is best represented by a histogram?

Back

Quantitative data is best represented by a histogram, as it involves numerical values that can be grouped into intervals.

Front

Define 'quantitative data'.

Back

Quantitative data refers to numerical information that can be measured and expressed mathematically, such as height, weight, or rainfall.

Front

What is the purpose of using intervals in a histogram?

Back

Intervals in a histogram help to group data points into ranges, making it easier to visualize the distribution and frequency of the data.

Front

How do you determine the range for intervals in a histogram?

Back

To determine the range for intervals, identify the minimum and maximum values in the data set, then divide the range into equal parts based on the number of intervals desired.

Front

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

Back

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

Front

What is the mode of a data set?

Back

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

Front

How can 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 the least value in a data set?

Back

The least value is the smallest number in the data set.

Front

What is the significance of the x-axis in a histogram?

Back

The x-axis in a histogram represents the intervals (bins) of the data, showing the range of values.