Between 1900 and 1960,the Average Age of Menarche in Canada

question 23

Multiple Choice

Between 1900 and 1960,the average age of menarche in Canada and the United States dropped by about two months every decade.This is an illustration of the

• A)pubertal decline.
• B)secular trend.
• C)delayed phase preference.
• D)lowered reaction range.

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Definitions:

Equal Chance

The principle of providing everyone with the same opportunity without discrimination or preference.

Population

The total number of people living in a particular area, country, or the world, or a specific group of individuals within a larger community.

Randomly

Without a specific pattern, purpose, or objective; happening by chance.

Without Bias

an approach or stance that is impartial, fair, and not influenced by personal or societal prejudices.