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HDFS 230 Lecture 1:

United States

Child Development

Human Development and Family Sciences

Kelly Champion

Northern Illinois University

Cultural Geography

Statistics I

Health Psychology

Introduction To Biology With Laboratory

Introduction To Mass Communication

Introductory Psychology II

Nutrition For A Lifetime

Introductory Bacteriology

Chemistry

Principles of Microeconomics

Behavior Disturbances in Children

Introduction to Public Health

Introduction to Theatre

Which of the following best illustrates the relationship between entities and attributes?
<ol>
<li>the entity CUSTOMER with the attribute PRODUCT</li>
<li>the entity CUSTOMER with the attribute PURCHASE</li>
<li>the entity PRODUCT with the attribute PURCHASE</li>
<li>the entity product with the attribute CUSTOMER</li>
</ol>

write an expression that evaluates to true if the str associated with s starts with "p".
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In a small study, 12 women with cervical cancer (cancer of the cervix) and 12 women with no apparent cervical cancer were contacted and asked whether they had ever used the hormone estrogen as a drug. Each woman with cancer was matched by age, race, and weight with a woman without the disease. This is an example of:
a) A randomized controlled trial
b)A prospective cohort study
c) A case-control study
d) A retrospective cohort study

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