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
A grouped frequency distribution is an ordered listed of a variable X, into groups in one column with a listing in a second column, the frequency column. A grouped frequency distribution is an arrangement class intervals and corresponding frequencies in a table.