Suppose That More Than a Decade Ago High Levels of Lead

question 45

Multiple Choice

Suppose that more than a decade ago high levels of lead in the blood put 78% of children at risk. A concerted effort was made to remove lead from the environment. Suppose, according to a survey, only 6% of children in the United States are at risk of high blood-lead levels. In a random sample of 150 children taken more than a decade ago, what is the probability that 105 or more had high blood-lead levels?

• A)0.963
• B)0.079
• C)1.000
• D)0.000

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Definitions:

Significant Others

Are people who play important roles in the early socialization experiences of children.

Socialization

The process by which individuals learn and adopt the norms, values, behavior, and social skills appropriate to their society or social group.

Approval

The act of accepting or endorsing something, often in a formal or official capacity.

Cooley

Charles Horton Cooley was an American sociologist who is best known for his concept of the looking-glass self, which describes the process by which individuals base their sense of self on how they believe others view them.