Use the Following to Answer Questions

question 14

Multiple Choice

Use the following to answer questions:
Refer to the diagram below, showing the decay of a radioactive substance.
-What is the half-life of this substance?

• A) 50,000 years
• B) 70,000 years
• C) 100,000 years
• D) 140,000 years
• E) 300,000 years

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Definitions:

Relatively Efficient

Refers to a process or system that achieves its goals with comparatively minimal waste of time, resources, or energy.

Larger Sample

Refers to increasing the number of observations in a sample to reduce random sampling error and make the sample statistics more representative of the population.

Sample Variance

A measure of the dispersion or spread in a set of sample data, calculated by averaging the squared deviations from the sample mean.

Sample Median

The value separating the higher half from the lower half of a data sample.