The Isotope Has a Half-Life of 24,100 Years

question 17

Multiple Choice

The isotope has a half-life of 24,100 years. After 10,000 years, a sample of the isotope is reduced 1.6 grams. What was the initial size of the sample (in grams) ? How large was the sample after the first 1,000 years? Round your answers to four decimal places.

• A) 2.1332 , 2.0727
• B) 2.7731 , 2.6945
• C) 1.2799 , 1.2436
• D) 1.7065 , 1.6582
• E) 1.0666 , 1.0364

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Definitions:

Chi-squared Goodness-of-fit

Chi-squared Goodness-of-fit tests how well observed data matches the expected data distribution in categories.

Two Categories

A classification into two distinct groups or divisions based on specific criteria.

Chi-squared Test

An analytical procedure utilized to check for a significant connection between two variables that are categorized.

Categories

Distinct groups or classifications into which data or objects can be organized.