A Radioactive Isotope of a Metal Produced a Reading of 188

question 92

Multiple Choice

A radioactive isotope of a metal produced a reading of 188 Bq.  Another reading of the activity was taken 4 hours later and the reading was 47.0 Bq.  What is the half-life of this isotope?

• A)4 hr
• B)2 hr
• C)1 hr
• D)30 min

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Definitions:

Bootstrap Confidence Interval

A statistical method for estimating the confidence interval of a parameter by resampling the original data with replacement.

Bootstrap Distribution

The distribution of a large number of bootstrap samples' statistics, used for estimating the shape of the true distribution of a statistic.

Normal

A term often used to describe data following a bell-shaped, symmetrical distribution around a central value, with predictable patterns as far as spread and outliers.

Bootstrap Distribution

A technique in statistics for estimating the distribution of a statistic by resampling with replacement from the original sample.