Based on the Information in the Graph,approximately How Old Are

question 87

Multiple Choice

Based on the information in the graph,approximately how old are two rocks,one containing 25% uranium-238 and 75% lead,and one containing 50% uranium-238 and 50% lead?

• A) around 2.25 billion years and 4.5 billion years,respectively
• B) around 9 billion years and 4.5 billion years,respectively
• C) around 1.3 billion years and 2.4 billion years,respectively
• D) around 4.5 billion years and 9 billion years,respectively
• E) The question cannot be answered with the information provided.

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Definitions:

Mean Square

A statistical measure used in variance and regression analysis, representing the average of the squares of the differences between observed and expected values.

Treatments

Methods or interventions applied in experimental research to study their effects on subjects.

Test Statistic

A numerical value calculated from a sample of data used to assess a hypothesis in a statistical test.

Test Statistic

A value calculated from sample data used to test a hypothesis against some criterion.