Use the Following Information to Answer the Question

question 17

Multiple Choice

Use the following information to answer the question. These two headlines are on the same topic.
Headline A: Married men who gain weight following the birth of their first child dramatically increase their risk of further
weight gain following the birth of more children, a new study suggests.
Headline B: Married male weight gain after the birth of the first child leads to additional weight gain following the birth of
more children, a new study finds.
-An office building janitorial company is interested in the opinions of people who visit the office building on a typical day. He thinks that opinions of people who visit the office building in the
Morning could be different than those who visit later in the day and he does not want a biased
Sample. Which sampling method is likely to result in an unbiased sample?

• A) A large sample of people who visit the building that have been stratified by age.
• B) A cluster sample of all the people who visit the office building between 8:00 am and 9:00 am and between 5:00 pm and 6:00 pm.
• C) A systematic sample of every tenth person who visits the office building throughout the day.
• D) None of these.

---

Definitions:

Sarcoma

Malignant tumors of the connective, muscle, or bone tissue.

Major Histocompatibility Complex

A set of genes that play a critical role in immune system function by helping the body recognize and differentiate between self and non-self antigens.

Biochemical Fingerprint

A unique pattern or profile of biochemical markers or traits that can be used to identify individuals or biological samples.

Body Cells

The basic structural, functional, and biological units of all known living organisms; cells make up the tissues of the body.