4. A histogram is a pictorial representation of the grouped data in which class intervals and frequency arerespectively taken along

A histogram is a graphical representation of data that organizes a group of data points into a specified range. The process involves the following steps:

1. Data Collection: The first step is to collect and organize the data. This could be any kind of data like the number of hours a student studies per day, the rainfall in a year, etc.

2. Create Class Intervals/Bins: The range of data is divided into intervals or bins. For example, if the data is about the number of hours a student studies per day, the bins could be 0-2 hours, 2-4 hours, 4-6 hours, etc.

3. Count Data Points in Each Interval: The next step is to count how many data points fall into each interval. This is the frequency of the interval.

4. Plot the Histogram: The final step is to plot the histogram. The class intervals are taken along the x-axis and the frequencies are taken along the y-axis. Each interval is represented by a bar; the height of the bar is the frequency of the interval.

So, in a histogram, the class intervals are represented along the x-axis and the frequencies are represented along the y-axis. The height of each bar corresponds to its frequency.