The sale of ice creams is higher in summer than in winter is an example of

The sale of ice creams is higher in summer than in winter demonstrates a pattern that repeats at fixed intervals within a year based on seasons.

A seasonal trend is a pattern that repeats regularly and predictably every year, tied to specific seasons, months, or times. Ice cream sales consistently increase in summer and decrease in winter, following this predictable yearly cycle. Other examples include umbrella sales during rainy seasons and heater sales in winter.

A cyclical trend repeats over several years (typically 2-10 years) and is often tied to economic cycles like boom and recession periods. Ice cream sales fluctuate with seasons over months, not multi-year periods, so this does not apply.

A long-term trend shows an overall direction of data over an extended period, displaying continuous increase or decrease rather than regular fluctuations. Population growth over decades is an example. Ice cream sales show regular up-and-down patterns rather than a single continuous direction.

An irregular trend consists of random, unpredictable changes with no discernible pattern, such as sales drops due to unexpected events like storms or pandemics. Ice cream sales are highly predictable based on seasons, making this classification incorrect.

The answer is Seasonal Trend.