Write short notes on Histogram.

A Histogram is a graphical representation of data grouped into continuous number ranges, depicted as vertical bars. The horizontal axis displays the number ranges, while the vertical axis represents the frequency or amount of data present in each range. Histograms are useful for visualising the distribution, central tendency and variability of a dataset, as well as for identifying patterns such as skewness or the presence of outliers. They are commonly used in statistics, quality control and research.