The Half-Life of ¹⁴C Is 5730 Yr

question 72

Multiple Choice

The half-life of ¹⁴C is 5730 yr. Assuming some charcoal from a campfire 29,000 years old was found, what fraction of the original C-14 would remain today?

• A) 3.0 × 10^-2
• B) 0.20
• C) 3.5
• D) 0.33
• E) 0.29

Understand the basic statistical measures such as mean, median, mode, and range.

Interpret data visualizations including histograms, boxplots, stem-and-leaf displays, and timeplots.

Apply techniques to re-express data to make it more interpretable or to better reveal its structure.

Understand and analyze the distribution of data including skewness and gaps.

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Definitions:

Compound Interest

Interest determined on the original amount of a deposit or loan, incorporating all the earned interest from past periods as well.

Compounded Semiannually

A method of calculating interest where the interest is added to the principal twice a year, leading to interest earned on interest.

Compounded Annually

This refers to the process of calculating interest on an investment or loan on a yearly basis, where interest from one year is added to the principal for calculation of interest in the next year.

Present Value

The current value of a future sum of money or stream of cash flows, given a specified rate of return.