If the Half-Life of a Material Is 45 Years, How $1 / 2$

question 49

Multiple Choice

If the half-life of a material is 45 years, how much of it will be left after 100 years?

• A) Iess than \(1 / 2\) but more than \(1 / 4\)
• B) more than \(1 / 4\) but less than \(1 / 2\)
• C) Iess than \(1 / 4\) but more than \(1 / 8\)
• D) Iess than \(1 / 8\)
• E) more than \(1 / 2\)

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Definitions:

Confidence Interval

A span of numerical values, calculated from sample data, speculated to potentially contain the value of an unknown population parameter.

Population Proportion

The portion of a population that possesses a certain property or characteristic.

Drowsiness

A state of feeling abnormally sleepy or tired, often a symptom of a condition or result from certain medications, substances, or health issues.

Error of Estimation

The difference between an estimated value and the true value, reflecting the degree to which an estimation method may deviate from accuracy.