Holistic Health. Weight gain that occurs when your weight increases without increasing your food intake has many causes. Thyroid hormone deficiency may slow metabolism, resulting in weight gain from fat gain and water retention.
used when the range is large and classes several units in width are needed ungrouped frequency distribution used for numerical data and when range of data is small; each class is only one unit
The frequency density is a the frequency of values divided by the class width of values. The area of each block/bar represents the total of frequencies for a particular class width. The width of the block/bar(along the x-axis) relates to the size of the class width.