50 Students Were Randomly Sampled and Asked Questions About Their

question 67

Multiple Choice

50 students were randomly sampled and asked questions about their exercise habits. One of the questions they were asked concerned the frequency of exercise, defined to be the number of times they exercised in a week. This variable would be characterized as which type of random variable?

• A) discrete
• B) continuous

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Definitions:

Primary Sex Characteristics

The physical structures directly related to reproduction, such as ovaries in females and testes in males.

Secondary Sex Characteristics

These are features that appear during puberty, distinguishing male and female bodies, but are not directly involved in reproduction.

Adrenal Glands

A pair of endocrine glands that sit just above the kidneys and secrete hormones (epinephrine and norepinephrine) that help arouse the body in times of stress

Testosterone

The most important male sex hormone. Both males and females have it, but the additional testosterone in males stimulates the growth of the male sex organs during the fetal period, and the development of the male sex characteristics during puberty.